Tootfinder

A new theoretical approach to disordered Majorana nanowires: Studying disorder without any disorder
Haining Pan, Sankar Das Sarma
https://arxiv.org/abs/2404.01379

A new theoretical approach to disordered Majorana nanowires: Studying disorder without any disorder
The interplay of disorder and short finite wire length is the crucial physics hindering progress in the semiconductor-superconductor nanowire platform for realizing non-Abelian Majorana zero modes (MZM). Disorder effectively segments the nanowire into isolated patches of quantum dots (QD) which act as subgap Andreev bound states often mimicking MZMs. In this work, we propose and develop a new theoretical approach to model disorder, effectively a spatially varying effective mass model, which doe…

Discovering robust biomarkers of neurological disorders from functional MRI using graph neural networks: A Review
Yi Hao Chan, Deepank Girish, Sukrit Gupta, Jing Xia, Chockalingam Kasi, Yinan He, Conghao Wang, Jagath C. Rajapakse
https://arxiv.org/abs/2405.00577

Discovering robust biomarkers of neurological disorders from functional MRI using graph neural networks: A Review
Graph neural networks (GNN) have emerged as a popular tool for modelling functional magnetic resonance imaging (fMRI) datasets. Many recent studies have reported significant improvements in disorder classification performance via more sophisticated GNN designs and highlighted salient features that could be potential biomarkers of the disorder. In this review, we provide an overview of how GNN and model explainability techniques have been applied on fMRI datasets for disorder prediction tasks, w…

High-fat keto diet may help those with bipolar, schizophrenia, study finds - The Washington Post
https://www.

High-fat keto diet may help people with serious mental illness
A clinical trial conducted by researchers at Stanford found a ketogenic diet may help people with schizophrenia or bipolar disorder.

This https://arxiv.org/abs/2403.03914 has been replaced.
initial toot: https://mastoxiv.page/@a…

Effect of Uncorrelated On-site Scalar Potential and Mass Disorder on Transport of Two-Dimensional Dirac Fermions
We investigate the transport properties of massive Dirac fermions subjected to uncorrelated scalar potential disorder, and mass disorder. Using a finite difference method, the conductance is calculated for a wide variety of combinations of these two disorder strengths. By calculating the scaling of conductivity with system size we find that, depending on the combination, the system can have an insulating, scale invariant, and metallic behavior. We identify the critical values of these disorder …

The Parisi-Sourlas Uplift and Infinitely Many Solvable 4d CFTs
Emilio Trevisani
https://arxiv.org/abs/2405.00771 https://arxiv.org/pd…

The Parisi-Sourlas Uplift and Infinitely Many Solvable 4d CFTs
Parisi-Sourlas (PS) supersymmetry is known to emerge in some models with random field type of disorder. When PS SUSY is present the $d$-dimensional theory allows for a $d-2$-dimensional description. In this paper we investigate the reversed question and we provide new indications that any given CFT$_{d-2}$ can be uplifted to a PS SUSY CFT$_{d}$. We show that any scalar four-point function of a CFT$_{d-2}$ is mapped to a set of 43 four-point functions of the uplifted CFT$_{d}$ which are related …

Discovering robust biomarkers of neurological disorders from functional MRI using graph neural networks: A Review
Yi Hao Chan, Deepank Girish, Sukrit Gupta, Jing Xia, Chockalingam Kasi, Yinan He, Conghao Wang, Jagath C. Rajapakse
https://arxiv.org/abs/2405.00577

Discovering robust biomarkers of neurological disorders from functional MRI using graph neural networks: A Review
Graph neural networks (GNN) have emerged as a popular tool for modelling functional magnetic resonance imaging (fMRI) datasets. Many recent studies have reported significant improvements in disorder classification performance via more sophisticated GNN designs and highlighted salient features that could be potential biomarkers of the disorder. In this review, we provide an overview of how GNN and model explainability techniques have been applied on fMRI datasets for disorder prediction tasks, w…

This https://arxiv.org/abs/2305.18841 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Identification of Novel Diagnostic Neuroimaging Biomarkers for Autism Spectrum Disorder Through Convolutional Neural Network-Based Analysis of Functional, Structural, and Diffusion Tensor Imaging Data Towards Enhanced Autism Diagnosis
Autism spectrum disorder is one of the leading neurodevelopmental disorders in our world, present in over 1% of the population and rapidly increasing in prevalence, yet the condition lacks a robust, objective, and efficient diagnostic. Clinical diagnostic criteria rely on subjective behavioral assessments, which are prone to misdiagnosis as they face limitations in terms of their heterogeneity, specificity, and biases. This study proposes a novel convolutional neural network-based classificatio…

This https://arxiv.org/abs/2403.14801 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Assessing the Utility of Large Language Models for Phenotype-Driven Gene Prioritization in Rare Genetic Disorder Diagnosis
Phenotype-driven gene prioritization is a critical process in the diagnosis of rare genetic disorders for identifying and ranking potential disease-causing genes based on observed physical traits or phenotypes. While traditional approaches rely on curated knowledge graphs with phenotype-gene relations, recent advancements in large language models have opened doors to the potential of AI predictions through extensive training on diverse corpora and complex models. This study conducted a comprehe…

This https://arxiv.org/abs/2310.07978 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Anderson localization transition in disordered hyperbolic lattices
We study Anderson localization in disordered tight-binding models on hyperbolic lattices. Such lattices are geometries intermediate between ordinary two-dimensional crystalline lattices, which localize at infinitesimal disorder, and Bethe lattices, which localize at strong disorder. Using state-of-the-art computational group theory methods to create large systems, we approximate the thermodynamic limit through appropriate periodic boundary conditions and numerically demonstrate the existence of…

This https://arxiv.org/abs/2305.12413 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Infinite disorder renormalization fixed point for the continuum random field Ising chain
We consider the continuum version of the random field Ising model in one dimension: this model arises naturally as weak disorder scaling limit of the original Ising model. Like for the Ising model, a spin configuration is conveniently described as a sequence of spin domains with alternating signs (domain-wall structure). We show that for fixed centered external field and as spin-spin couplings become large, the domain-wall structure scales to a disorder dependent limit that coincides with the i…

This https://arxiv.org/abs/2308.05603 has been replaced.
initial toot: https://mastoxiv.page/@…

Loss of memory of an elastic line on its way to limit cycles
Under an oscillating mechanical drive, an amorphous material progressively forgets its initial configuration and might eventually converge to a limit cycle. Beyond quasistatic drivings, how structurally disordered systems lose or record such memory remains theoretically challenging. Here we investigate these issues in a minimal model system -- with quenched disorder and memory encoded in a spatial pattern -- where the oscillating protocol can formally be replaced by finite positive-velocity dri…

When should PIC simulations be applied to atmospheric pressure plasmas? Impact of correlation heating
M. Acciarri, C. Moore, L. P. Beving, S. D. Baalrud
https://arxiv.org/abs/2403.00656

When should PIC simulations be applied to atmospheric pressure plasmas? Impact of correlation heating
Molecular dynamics simulations are used to test when the particle-in-cell (PIC) method applies to atmospheric pressure plasmas. It is found that PIC applies only when the plasma density and macroparticle weight are sufficiently small because of two effects associated with correlation heating. The first is the physical effect of disorder-induced heating (DIH). This occurs if the plasma density is large enough that a species (typically ions) is strongly correlated in the sense that the Coulomb co…

This https://arxiv.org/abs/2306.15725 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csHC_…

Supportive Fintech for Individuals with Bipolar Disorder: Financial Data Sharing Preferences to Support Longitudinal Care Management
Financial stability is a key challenge for individuals living with bipolar disorder (BD). Symptomatic periods in BD are associated with poor financial decision-making, contributing to a negative cycle of worsening symptoms and an increased risk of bankruptcy. There has been an increased focus on designing supportive financial technologies (fintech) to address varying and intermittent needs across different stages of BD. However, little is known about this population's expectations and privacy p…

Quantum AI for Alzheimer's disease early screening
Giacomo Cappiello, Filippo Caruso
https://arxiv.org/abs/2405.00755 https://arx…

Quantum AI for Alzheimer's disease early screening
Quantum machine learning is a new research field combining quantum information science and machine learning. Quantum computing technologies seem to be particularly well suited to solving problems in the health sector in an efficient way, because they may deal with large datasets more efficiently than classical AI. Alzheimer's disease is a neurodegenerative brain disorder that mostly affects elderly people, causing important cognitive impairments. It is the most common cause of dementia and it…

Here's my latest Human Meme podcast episode: Unraveling the Complexities of Factitious Disorder - http://sites.libsyn.com/84966/unraveling-the-complexities-of-factitious-disorder

@…
tea ✩ swallow surreal space cherry size of eyeball ✩ gulp ✩ grasp side of adjacent portion ✩ anticipatory cake collapse disorder ✩ envisage future self seated at right hand of network attached storage system plunging fork into cracked monitor ✩ delicious cathode ray ✩ First Supper

Half century of Efros-Shklovskii Coulomb gap. Romance with Coulomb interaction and disorder
B. I. Shklovskii
https://arxiv.org/abs/2403.19793 https://

Half century of Efros-Shklovskii Coulomb gap. Romance with Coulomb interaction and disorder
Efros-Shklovskii (ES) Coulomb gap in density of localized states and ES law of the variable range hopping conductivity were coined 50 years ago. The theory and its first confirmations were reviewed in our monograph 40-years ago. This paper reviews the subsequent experimental evidence, theoretical advancements, and novel applications. Out of hundreds of experimental validations of the ES law in a diverse range of materials, I focus on those where the dynamic range of conductivity exceeds four or…

Shame and hoarding disorder https://shameandmedicine.org/shame-and-hoarding-disorder/

This https://arxiv.org/abs/2306.01588 has been replaced.
initial toot: https://mastoxiv.page/@…

Particle dynamics and ergodicity-breaking in twisted-bilayer optical lattices
Recent experiments have realized a twisted bilayer-like optical potential for ultra-cold atoms, which in contrast to solid-state set ups may allow for an arbitrary ratio between the inter- and intra-layer couplings. For commensurate Moiré twistings a large-enough inter-layer coupling results in particle transport dominated by channel formation. For incommensurate twistings, the interlayer coupling acts as an effective disorder strength. Whereas for weak couplings the whole spectrum remains erg…

A Novel Stochastic Transformer-based Approach for Post-Traumatic Stress Disorder Detection using Audio Recording of Clinical Interviews
Mamadou Dia, Ghazaleh Khodabandelou, Alice Othmani
https://arxiv.org/abs/2403.19441

A Novel Stochastic Transformer-based Approach for Post-Traumatic Stress Disorder Detection using Audio Recording of Clinical Interviews
Post-traumatic stress disorder (PTSD) is a mental disorder that can be developed after witnessing or experiencing extremely traumatic events. PTSD can affect anyone, regardless of ethnicity, or culture. An estimated one in every eleven people will experience PTSD during their lifetime. The Clinician-Administered PTSD Scale (CAPS) and the PTSD Check List for Civilians (PCL-C) interviews are gold standards in the diagnosis of PTSD. These questionnaires can be fooled by the subject's responses. Th…

Embracing Disorder in Quantum Materials Design
A. R. Mazza, J. Yan, S. Middey, J. S. Gardner, A. -H. Chen, M. Brahlek, T. Z. Ward
https://arxiv.org/abs/2402.18379

Embracing Disorder in Quantum Materials Design
Many of the most exciting materials discoveries in fundamental condensed matter physics are made in systems hosting some degree of intrinsic disorder. While disorder has historically been regarded as something to be avoided in materials design, it is often of central importance to correlated and quantum materials. This is largely driven by the conceptual and theoretical ease to handle, predict, and understand highly uniform systems that exhibit complex interactions, symmetries and band structur…

Protip: don't get major depressive disorder

This https://arxiv.org/abs/2401.03028 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Phase transitions and scale invariance in topological Anderson insulators
We investigate disordered-driven transitions between trivial and topological insulator (TI) phases in two-dimensional (2D) systems. Our study primarily focuses on the BHZ model with Anderson disorder, while other standard 2DTI models exhibit equivalent features. The analysis is based on the local Chern marker (LCM), a local quantity that allows for the characterization of topological transitions in finite and disordered systems. Our simulations indicate that disorder-driven trivial to topologic…

Near-Visible Topological Edge States in a Silicon Nitride Platform
David Sharp, Christopher Flower, Mahmoud Jalali Mehrabad, Arnab Manna, Hannah Rarick, Rui Chen, Mohammad Hafezi, Arka Majumdar
https://arxiv.org/abs/2404.01432

Near-Visible Topological Edge States in a Silicon Nitride Platform
Demonstrations of topological photonics have so far largely been confined to infrared wavelengths where imaging technology and access to low-dimensional quantum materials are both limited. Here, we designed and fabricated silicon nitride ring-resonator arrays to demonstrate photonic topological edge states at ~780 nm. We observed edge states corresponding to the integer quantum Hall Hamiltonian with topological protection against fabrication disorder. This demonstration extends the concept of t…

💔 New evidence links passive smoking with dangerous heart rhythm disorder
https://medicalxpress.com/news/2024-04-evidence-links-passive-dangerous-heart.html

New evidence links passive smoking with dangerous heart rhythm disorder
Exposure to secondhand smoke—even at small amounts—is linked with greater risk of a serious heart rhythm disorder, according to research presented at EHRA 2024, a scientific congress of the European Society of Cardiology (ESC). The likelihood of atrial fibrillation increased as the duration of passive smoking lengthened.

https://www.theguardian.com/world/2024/apr/06/world-disorder-israel-gaza-war-international-relations?CMP=Share_AndroidApp_Other

U.S. approves gene therapy treatment for hemophilia - Raw Story
https://www.rawstory.com/u-s-approves-gene-therapy-treatment-for-hemophilia/

U.S. approves gene therapy treatment for hemophilia
Pharmaceutical giant Pfizer has received U.S. approval for a gene therapy against a form of hemophilia, a rare and inherited blood clotting disorder, the company said Friday.Beqvez, which is given as a single intravenous infusion, was shown in a clinical trial of 45 people to be better at preventing...

Avalanche Dynamics and the Effect of Straining in Dislocation Systems with Quenched Disorder
D\'enes Berta, Barna Mendei, P\'eter Dus\'an Isp\'anovity
https://arxiv.org/abs/2404.18871

Avalanche Dynamics and the Effect of Straining in Dislocation Systems with Quenched Disorder
The plastic deformation of crystalline and other heterogeneous materials often manifests in stochastic intermittent events indicating the criticality of plastic behavior. Previous studies demonstrated that the presence of short-ranged quenched disorder modifies this behavior disrupting long-range static and dynamic correlations consequently localizing dislocation avalanches. However, these observations were mostly confined to relaxed materials devoid of deformation history. In this work our foc…

#PhD opportunity with James Hodge ( @… ) and Alice French
Determining the #genetic and

Funded PhD - Determining the genetic and circadian basis of bipolar disorder at University of Bristol on FindAPhD.com
PhD Project - Funded PhD - Determining the genetic and circadian basis of bipolar disorder at University of Bristol, listed on FindAPhD.com

A Self-Absorbed America Means Disorder for the World
Whatever the next year holds, the world owes U.S. President Joe Biden a debt of gratitude for the past three. Against rather long odds, he has managed to hold back the chaos that has long been flooding into U.S. politics.
But the next year—and likely the years beyond—promises to be a maelstrom for U.S. foreign policy.

A Self-Absorbed America Means Disorder for the World
The dam holding back chaos in U.S. foreign policy is cracking.

Speech Corpus for Korean Children with Autism Spectrum Disorder: Towards Automatic Assessment Systems
Seonwoo Lee, Jihyun Mun, Sunhee Kim, Minhwa Chung
https://arxiv.org/abs/2402.15539

Speech Corpus for Korean Children with Autism Spectrum Disorder: Towards Automatic Assessment Systems
Despite the growing demand for digital therapeutics for children with Autism Spectrum Disorder (ASD), there is currently no speech corpus available for Korean children with ASD. This paper introduces a speech corpus specifically designed for Korean children with ASD, aiming to advance speech technologies such as pronunciation and severity evaluation. Speech recordings from speech and language evaluation sessions were transcribed, and annotated for articulatory and linguistic characteristics. Th…

Use of recommendation models to provide support to dyslexic students
Gianluca Morciano, Jos\'e Manuel Alcalde-Llergo, Andrea Zingoni, Enrique Yeguas-Bolivar, Juri Taborri, Giuseppe Calabr\`o
https://arxiv.org/abs/2403.14710

Use of recommendation models to provide support to dyslexic students
Dyslexia is the most widespread specific learning disorder and significantly impair different cognitive domains. This, in turn, negatively affects dyslexic students during their learning path. Therefore, specific support must be given to these students. In addition, such a support must be highly personalized, since the problems generated by the disorder can be very different from one to another. In this work, we explored the possibility of using AI to suggest the most suitable supporting tools …

This https://arxiv.org/abs/2307.05656 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Universal stability of coherently diffusive 1D systems with respect to decoherence
Static disorder in a 3D crystal degrades the ideal ballistic dynamics until it produces a localized regime. This Metal-Insulator Transition is often preceded by coherent diffusion. By studying three paradigmatic 1D models, namely the Harper-Hofstadter-Aubry-André and Fibonacci tight-binding chains, along with the power-banded random matrix model, we show that whenever coherent diffusion is present, transport is exceptionally stable against decoherent noise. This is completely at odds with what…

Disorder-induced acoustic non-Hermitian skin effect
Bing-bing Wang, Zheyu Cheng, Hong-yu Zou, Yong Ge, Ke-qi Zhao, Qiao-rui Si, Shou-qi Yuan, Hong-xiang Sun, Haoran Xue, Baile Zhang
https://arxiv.org/abs/2402.10989

Disorder-induced acoustic non-Hermitian skin effect
The interplay between disorder and topology leads to rich phenomena such as topological Anderson insulator phases, where disorder opens a topological bandgap and thereby enhances transport. With the recent advances in non-Hermitian topological physics, topological Anderson insulators have been generalized to systems with non-Hermitian disorder. However, achieving disorder-induced nontrivial point-gap topology, which is unique to non-Hermitian systems and is responsible for non-Hermitian skin ef…

🔊 #NowPlaying on KEXP's #DriveTime
Mark Lanegan:
🎵 Disorder
#MarkLanegan

I came to the conclusion that impulsivity is not a symptom of ADD/ADHD but a consequence. Let me explain:
My main issue with ADD is that important thoughts (todos, dates, deadlines, promises, ...) never come up unless triggered somehow. Now, when any important thought comes up in my unreliable brain I have two choices:
1. act immediately
2. dismiss the thought, possibly forever
Note: ADD/ADHD is a real disorder in the brain's metabolism and not a popculture phenome…

Artificial Intelligence for Complex Network: Potential, Methodology and Application
Jingtao Ding, Chang Liu, Yu Zheng, Yunke Zhang, Zihan Yu, Ruikun Li, Hongyi Chen, Jinghua Piao, Huandong Wang, Jiazhen Liu, Yong Li
https://arxiv.org/abs/2402.16887

Artificial Intelligence for Complex Network: Potential, Methodology and Application
Complex networks pervade various real-world systems, from the natural environment to human societies. The essence of these networks is in their ability to transition and evolve from microscopic disorder-where network topology and node dynamics intertwine-to a macroscopic order characterized by certain collective behaviors. Over the past two decades, complex network science has significantly enhanced our understanding of the statistical mechanics, structures, and dynamics underlying real-world n…

Emergent Non-Abelian Thouless Pumping Induced by the Quasiperiodic Disorder
Sen Huang, Yan-Qing Zhu, Zhi Li
https://arxiv.org/abs/2404.18491 https://

Emergent Non-Abelian Thouless Pumping Induced by the Quasiperiodic Disorder
We investigate the non-Abelian Thouless pumping in a disorder tunable Lieb chain with degenerate flat bands. The results reveal that quasiperiodic disorder will cause a topological phase transition from the trivial (without non-Abelian Thouless pumping) to the non-trivial (with non-Abelian Thouless pumping) phase. The mechanism behind is that the monopole originally outside the topological region can be driven into the topological region due to the introduction of quasiperiodic disorder. Moreov…

Kyle Hayes is hurling's WhatsApp Paddy.
https://www.irishtimes.com/sport/gaelic-games/2024/03/22/your-view-on-kyle-hayes-shouldnt-be-coloured-by-team-allegiance-but…

Your view on Kyle Hayes shouldn’t be coloured by team allegiance - but sport is depressingly predictable
While the Limerick hurler got a suspended sentence after being found guilty of two acts of violent disorder, it’s impossible to divorce the case from his standing as a high-profile sportsperson

Walked 10.25 km at #Treefort2024, and my sore ankle def. needed a hot pad! It took me quite a while to fall asleep... Handicapped parking & Lime for me!

This https://arxiv.org/abs/2310.16080 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Disorder effects in spiral spin liquids: Long-range spin textures, Friedel-like oscillations, and spiral spin glasses
Spiral spin liquids are correlated states of matter in which a frustrated magnetic system evades order by fluctuating between a set of (nearly) degenerate spin spirals. Here, we investigate the response of spiral spin liquids to quenched disorder in a $J_1$-$J_2$ honeycomb-lattice Heisenberg model. At the single-impurity level, we identify different order-by-quenched-disorder phenomena and analyze the ensuing spin textures. In particular, we show that the latter generally display Friedel-like o…

A Self-Absorbed America Means Disorder for the World
Whatever the next year holds, the world owes U.S. President Joe Biden a debt of gratitude for the past three. Against rather long odds, he has managed to hold back the chaos that has long been flooding into U.S. politics.
But the next year—and likely the years beyond—promises to be a maelstrom for U.S. foreign policy.

A Self-Absorbed America Means Disorder for the World
The dam holding back chaos in U.S. foreign policy is cracking.

This https://arxiv.org/abs/2311.06799 has been replaced.
initial toot: https://mastoxiv.page/@arXi…

Correlated orientational disorder in entropic crystals
We report computational evidence for a new type of disordered phase in crystals resulting from entropy driven self-assembly of hard convex polyhedra. The disorder was reflected in the orientations of the anisotropic particles and not in the positions of the centers of geometry. Despite the lack of order, particle orientations were not random, and exhibited strong correlations. The orientational correlations possessed certain special properties that remained constant across the pressure range wh…

This https://arxiv.org/abs/2311.15054 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csCL_…

Detection of developmental language disorder in Cypriot Greek children using a neural network algorithm
Children with developmental language disorder (DLD) encounter difficulties in acquiring various language structures. Early identification and intervention are crucial to prevent negative long-term outcomes impacting the academic, social, and emotional development of children. The study aims to develop an automated method for the identification of DLD using artificial intelligence, specifically a neural network machine learning algorithm. This protocol is applied for the first time in a Cypriot …

Human brains seem to have a 'familiarity' bit set on certain interactions — if it's off and wrong, we interpret our family as imposters; there's a brain disorder that causes this and it's awful. But just as much, an unfamiliar group of people or person with the bit flipped on falsely has weird effects, and that's what this feels like. I keep interpreting the unfamiliar group of people as familiar and then realizing they're not, and it throws me so bad.

Floquet Prethermal Order by Disorder
Hui-Ke Jin, Johannes Knolle
https://arxiv.org/abs/2403.17118 https://arxiv.org/pdf/2403.17118

Floquet Prethermal Order by Disorder
Frustrated magnets can have accidental ground state degeneracies which may be lifted by various forms of disorder, for example in the form of thermal or quantum fluctuations. This order by disorder (ObD) paradigm is well established in equilibrium and here is generalized to Floquet many-body systems. Investigating a periodically-driven XXZ-compass model on the square lattice, we show that in a prethermal regime, dynamical fluctuations induced by high-frequency drives select a discrete set of st…

More thoughts on using Vision Pro for productivity:
It really is nice for multitasking.
But when sunlight is coming through my windows, the passthrough view is not as bright as reality. I don’t spend enough time outside, and even use a light box to stave off seasonal affective disorder. So less light intake is actually a problem.

This https://arxiv.org/abs/2402.13434 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Phase transition and universality of the majority-rule model on complex networks
We investigate the phenomena of order-disorder phase transition and the universality of the majority rule model defined on three complex networks, namely the Barabasi-Albert, Watts-Strogatz, and Erdos-Renyi networks. Assume each agent holds two possible opinions distributed randomly across the networks' nodes. Agents adopt anticonformity and independence behaviors, represented by the probability (p), where with a probability (p), agents adopt anticonformity or independence behavior. Based on ou…

This https://arxiv.org/abs/2402.18549 has been replaced.
initial toot: https://mastoxiv.page/@a…

Stabilizing topological superconductivity in disordered spin-orbit coupled semiconductor-superconductor heterostructures
We investigate theoretically a one-dimensional semiconductor-superconductor (SM-SC) heterostructure with Rashba spin-orbit coupling and parallel Zeeman field in the presence of disorder generated by random charged impurities and identify the optimal regimes for realizing topological superconductivity and Majorana zero modes. Using a Green's function approach, we show that upon increasing the disorder strength the stable topological superconducting phase characterized by robust end-to-end Majora…

Mott transition for a Lieb-Liniger gas in a shallow quasiperiodic potential: Delocalization induced by disorder
Hepeng Yao, Luca Tanzi, Laurent Sanchez-Palencia, Thierry Giamarchi, Giovanni Modugno, Chiara D'Errico
https://arxiv.org/abs/2402.15318

Mott transition for a Lieb-Liniger gas in a shallow quasiperiodic potential: Delocalization induced by disorder
Disorder or quasi-disorder is known to favor the localization in many-body Bose systems. Here in contrast, we demonstrate an anomalous delocalization effect induced by incommensurability in quasiperiodic lattices. Loading ultracold atoms in two shallow periodic lattices with equal amplitude and either equal or incommensurate spatial periods, we show the onset of a Mott transition not only in the periodic case but also in the quasiperiodic case. Upon increase of the incommensurate component of t…

PupilSense: Detection of Depressive Episodes Through Pupillary Response in the Wild
Rahul Islam, Sang Won Bae
https://arxiv.org/abs/2404.14590 https://

PupilSense: Detection of Depressive Episodes Through Pupillary Response in the Wild
Early detection of depressive episodes is crucial in managing mental health disorders such as Major Depressive Disorder (MDD) and Bipolar Disorder. However, existing methods often necessitate active participation or are confined to clinical settings. Addressing this gap, we introduce PupilSense, a novel, deep learning-driven mobile system designed to discreetly track pupillary responses as users interact with their smartphones in their daily lives. This study presents a proof-of-concept explora…

Contact processes with quenched disorder on $\mathbb{Z}^d$ and on Erdos-Renyi graphs
Rick Durrett
https://arxiv.org/abs/2403.18592 https://

Contact processes with quenched disorder on $\mathbb{Z}^d$ and on Erdos-Renyi graphs
In real systems impurities and defects play an important role in determining their properties. Here we will consider what probabilists have called the contact process in a random environment and what physicists have more precisely named the contact process with quenched disorder. We will concentrate our efforts on the special case called the random dilution model, in which sites independently and with probability $p$ are active and particles on them give birth at rate $λ$, while the other site…

Effective Phonon Dispersion and Low field transport in AlxGa1-xN alloys using supercells: An ab-initio approach
Animesh Datta, Ankit Sharma, Matinehsadat Hosseinigheidari, Uttam Singisetti
https://arxiv.org/abs/2402.16203

Effective Phonon Dispersion and Low field transport in AlxGa1-xN alloys using supercells: An ab-initio approach
To investigate the transport properties in random alloys, it is important to model the alloy disorder using supercells. Though traditional methods like Virtual Crystal Approximation (VCA) are computationally efficient, the local disorder in the system is not accurately captured as artificial translational symmetry is imposed on the system. However, in the case of supercells, the error introduced by self-image interaction between the impurities is reduced and translational symmetry is explicitly…

This https://arxiv.org/abs/2210.07999 has been replaced.
link: https://scholar.google.com/scholar?q=a

Scattering Expansion for Localization in One Dimension
We present a perturbative approach to disordered systems in one spatial dimension that accesses the full range of phase disorder and clarifies the connection between localization and phase information. We consider a long chain of identically disordered scatterers and expand in the reflection strength of any individual scatterer. As an example application, we show analytically that in a discrete-time quantum walk, the localization length can depend non-monotonically on the strength of phase diso…

This https://arxiv.org/abs/2309.10837 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qbi…

Improving Opioid Use Disorder Risk Modelling through Behavioral and Genetic Feature Integration
Opioids are an effective analgesic for acute and chronic pain, but also carry a considerable risk of addiction leading to millions of opioid use disorder (OUD) cases and tens of thousands of premature deaths in the United States yearly. Estimating OUD risk prior to prescription could improve the efficacy of treatment regimens, monitoring programs, and intervention strategies, but risk estimation is typically based on self-reported data or questionnaires. We develop an experimental design and co…

Direct Visualization of Disorder Driven Electronic Liquid Crystal Phases in Dirac Nodal Line Semimetal GdSbTe
Balaji Venkatesan, Syu-You Guan, Jen-Te Chang, Shiang-Bin Chiu, Po-Yuan Yang, Chih-Chuan Su, Tay-Rong Chang, Kalaivanan Raju, Raman Sankar, Somboon Fongchaiya, Ming-Wen Chu, Chia-Seng Chang, Guoqing Chang, Hsin Lin, Adrian Del Maestro, Ying-Jer Kao, Tien-Ming Chuang

Direct Visualization of Disorder Driven Electronic Liquid Crystal Phases in Dirac Nodal Line Semimetal GdSbTe
Electronic liquid crystal (ELC) phases are spontaneous symmetry breaking states believed to arise from strong electron correlation in quantum materials such as cuprates and iron pnictides. Here, we report a direct observation of ELC phases in a Dirac nodal line (DNL) semimetal GdSbxTe2-x. As topological materials with symmetry protected Dirac or Weyl fermions are mostly weakly correlated, the discovery of real-space electronic nanostructures displaying incommensurate smectic charge modulation a…

🔊 #NowPlaying on KEXP's #DriveTime
Mark Lanegan:
🎵 Disorder
#MarkLanegan

This https://arxiv.org/abs/2311.01148 has been replaced.
initial toot: https://mastoxiv.page/@a…

Weak localization at arbitrary disorder strength in systems with generic spin-dependent fields
We present a theory of weak localization (WL) in the presence of generic spin-dependent fields, including any type of spin-orbit coupling, Zeeman fields, and non-homogeneous magnetic textures. We go beyond the usual diffusive approximation, considering systems with short-range disorder of arbitrary strength, and obtain a compact expression for the weak localization (WL) correction to the conductivity in terms of the singlet-triplet polarization operator in momentum space. The latter can be dire…

This https://arxiv.org/abs/2211.13368 has been replaced.
link: https://scholar.google.com/scholar?q=a

Scattering Expansion for Localization in One Dimension: from Disordered Wires to Quantum Walks
We present a perturbative approach to disordered systems in one spatial dimension that accesses the full range of phase disorder and clarifies the connection between localization and phase information. We consider a long chain of identically disordered scatterers and expand in the reflection strength of any individual scatterer. We apply this expansion to several examples, including the Anderson model, a general class of periodic-on-average-random potentials, and a two-component discrete-time q…

This https://arxiv.org/abs/2311.07940 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Coherent transient exciton transport in disordered polaritonic wires
Excitation energy transport can be significantly enhanced by strong light-matter interactions. In the present work, we explore intriguing features of coherent transient exciton wave packet dynamics on a lossless disordered polaritonic wire. Our main results can be understood in terms of the effective exciton group velocity, a new quantity we obtain from the polariton dispersion. Under weak and moderate disorder, we find that the early wave packet spread velocity is controlled by the overlap of …

Amusing coincidence, darlings: RFK Jr. and I were born the same year; he's an October baby, I'm a few months earlier. I'm *much* better preserved...
#Autism is a spectrum disorder, so if vaccines gave it to you, he'd have autism just like me (I'm #ActuallyAutistic) be…

Automated Classification of Phonetic Segments in Child Speech Using Raw Ultrasound Imaging
Saja Al Ani, Joanne Cleland, Ahmed Zoha
https://arxiv.org/abs/2402.17482

Automated Classification of Phonetic Segments in Child Speech Using Raw Ultrasound Imaging
Speech sound disorder (SSD) is defined as a persistent impairment in speech sound production leading to reduced speech intelligibility and hindered verbal communication. Early recognition and intervention of children with SSD and timely referral to speech and language therapists (SLTs) for treatment are crucial. Automated detection of speech impairment is regarded as an efficient method for examining and screening large populations. This study focuses on advancing the automatic diagnosis of SSD…

Ideal noncrystals: A possible new class of ordered matter without apparent broken symmetry
Xinyu Fan, Ding Xu, Jianhua Zhang, Hao Hu, Peng Tan, Ning Xu, Hajime Tanaka, Hua Tong
https://arxiv.org/abs/2404.17675

Ideal noncrystals: A possible new class of ordered matter without apparent broken symmetry
Order and disorder constitute two fundamental and opposite themes in condensed matter physics and materials science. Crystals are considered the epitome of order characterized by long-range translational order. The discovery of quasicrystals, with no periodicity but rotational symmetries forbidden for crystals, leads to a paradigm shift in solid-state physics. Moving one step forward, it is intriguing to ask whether ordered matter exists without apparent symmetry breaking. The same question may…

This https://arxiv.org/abs/2311.14630 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

SYK Model in a Non-Gaussian disorder ensemble and emergent Coleman's mechanism
We consider the case of the SYK model with non-gaussian disorder in the large $N$ limit. After obtaining the effective action, we derive the density of states and the free energy of the modified theory. We show that the non-gaussian disorder corresponds to a non-local Liouville theory, and non-minimally coupled 2D gravity action. It also provides a nice realization of Colemania - Coleman's idea from the 80s of generating a small Cosmological Constant. Finally, we also calculate out of time orde…

Identifying Attention-Deficit/Hyperactivity Disorder through the electroencephalogram complexity
Dimitri Marques Abramov, Henrique Santos Lima, Vladimir Lazarev, Paulo Ricardo Galhanone, Constantino Tsallis
https://arxiv.org/abs/2403.14799

Identifying Attention-Deficit/Hyperactivity Disorder through the electroencephalogram complexity
There are reasons to suggest that a number of mental disorders may be related to alteration in the neural complexity (NC). Thus, quantitative analysis of NC could be helpful in classifying mental conditions and clarifying our understanding about them. Here, we have worked with youths, typical and with attention-deficit/hyperactivity disorder (ADHD), whose neural complexity was assessed using q-statistics applied to the electroencephalogram (EEG). The EEG was recorded while subjects performed th…

This https://arxiv.org/abs/2403.03315 has been replaced.
initial toot: https://mastoxiv.page/@…

Temporal relaxation of disordered many-body quantum systems under driving and dissipation
Strong disorder inhibits thermalization in isolated quantum systems and may lead to many-body localization (MBL). In realistic situations, however, the observation of MBL is hindered by residual couplings of the system to an environment, which acts as a bath and pushes the system to thermal equilibrium. This paper is concerned with the transient dynamics prior to thermalization and studies how the relaxation of a disordered system is altered under the influence of external driving and dissipati…

Nonlinear Defect Theory of Thermalization in Complex Multimoded Systems
Emily KabatWave Transport in Complex Systems Lab, Department of Physics, Wesleyan University, Middletown, USA, Alba Y. RamosInstitute for Modeling and Innovative Technology, IMIT, Physics Department, Natural and Exact Science Faculty, Northeastern University of Argentina, Corrientes, Argentina, Lucas J. Fern\'andez-Alc\'azarInstitute for Modeling and Innovative Technology, IMIT, Physics Department, Natural …

Nonlinear Defect Theory of Thermalization in Complex Multimoded Systems
We show that a single nonlinear defect can thermalize an initial excitation towards a Rayleigh-Jeans (RJ) state in complex multimoded systems. The thermalization can be hindered by disorder-induced localization phenomena which drive the system into a metastable RJ state. It involves only a (quasi-)isolated set of prethermal modes and can differ dramatically from the thermal RJ. We develop a one-parameter scaling theory that predicts the density of prethermal modes and we derive the modal relaxa…

Ultra-processed food use disorder
Junk food may not only affect our bodies, but our brains too.
New research suggests links between ultra-processed foods
—such as chips, many cereals and most packaged snacks at the grocery store
—and changes in the way we learn, remember and feel. These foods can act like addictive substances, researchers say

This https://arxiv.org/abs/2402.02562 has been replaced.
link: https://scholar.google.com/scholar?q=a

Strong disorder and very strong disorder are equivalent for directed polymers
We show that if the normalized partition function $W^β_n$ of the directed polymer model on $\mathbb{Z}^d$ converges to zero, then it does so exponentially fast. This implies that there exists a critical temperature $β_c$ such that the renormalized partition function has a non-degenerate limit for all $β\in [0,β_c]$ -- weak disorder holds -- while for $β\in (β_c,\infty)$ it converges exponentially fast to zero -- very strong disorder holds. This solves a twenty-years-old conjecture formula…

MoodCapture: Depression Detection Using In-the-Wild Smartphone Images
Subigya Nepal, Arvind Pillai, Weichen Wang, Tess Griffin, Amanda C. Collins, Michael Heinz, Damien Lekkas, Shayan Mirjafari, Matthew Nemesure, George Price, Nicholas C. Jacobson, Andrew T. Campbell
https://arxiv.org/abs/2402.16182

MoodCapture: Depression Detection Using In-the-Wild Smartphone Images
MoodCapture presents a novel approach that assesses depression based on images automatically captured from the front-facing camera of smartphones as people go about their daily lives. We collect over 125,000 photos in the wild from N=177 participants diagnosed with major depressive disorder for 90 days. Images are captured naturalistically while participants respond to the PHQ-8 depression survey question: \textit{``I have felt down, depressed, or hopeless''}. Our analysis explores important im…

Stabilizing topological superconductivity in disordered spin-orbit coupled semiconductor-superconductor heterostructures
Binayyak B. Roy, Rimika Jaiswal, Tudor D. Stanescu, Sumanta Tewari
https://arxiv.org/abs/2402.18549

Stabilizing topological superconductivity in disordered spin-orbit coupled semiconductor-superconductor heterostructures
We investigate theoretically a one-dimensional semiconductor-superconductor (SM-SC) heterostructure with Rashba spin-orbit coupling and parallel Zeeman field in the presence of disorder generated by random charged impurities and identify the optimal regimes for realizing topological superconductivity and Majorana zero modes. Using a Green's function approach, we show that upon increasing the disorder strength the stable topological superconducting phase characterized by robust end-to-end Majora…

Spin cones in random-field XY models
Rajiv G Pereira, Ananya Janardhanan, Mustansir Barma
https://arxiv.org/abs/2403.19939 https://ar…

Spin cones in random-field XY models
We determine the arrangement of spins in the ground state of the XY model with quenched, random fields, on a fully connected graph. Two types of disordered fields are considered, namely randomly oriented magnetic fields, and randomly oriented crystal fields. Orientations are chosen from a uniformly isotropic distribution, but disorder fluctuations in each realization of a finite system lead to a breaking of rotational symmetry. The result is an interesting pattern of spin orientations, found by…

This https://arxiv.org/abs/2402.02562 has been replaced.
link: https://scholar.google.com/scholar?q=a

Strong disorder and very strong disorder are equivalent for directed polymers
We show that if the normalized partition function $W^β_n$ of the directed polymer model on $\mathbb{Z}^d$ converges to zero, then it does so exponentially fast. This implies that there exists a critical temperature $β_c$ such that the renormalized partition function has a non-degenerate limit for all $β\in [0,β_c]$ -- weak disorder holds -- while for $β\in (β_c,\infty)$ it converges exponentially fast to zero -- very strong disorder holds. This solves a twenty-years-old conjecture formula…

This https://arxiv.org/abs/2310.04615 has been replaced.
link: https://scholar.google.com/scholar?q=a

Giant Modulation of Refractive Index from Picoscale Atomic Displacements
Structural disorder has been shown to enhance and modulate magnetic, electrical, dipolar, electrochemical, and mechanical properties of materials. However, the possibility of obtaining novel optical and optoelectronic properties from structural disorder remains an open question. Here, we show unambiguous evidence of disorder in the form of anisotropic, picoscale atomic displacements modulating the refractive index tensor and resulting in the giant optical anisotropy observed in BaTiS$_3$, a qua…

Identifying Attention-Deficit/Hyperactivity Disorder through the electroencephalogram complexity
Dimitri Marques Abramov, Henrique Santos Lima, Vladimir Lazarev, Paulo Ricardo Galhanone, Constantino Tsallis
https://arxiv.org/abs/2403.14799

Identifying Attention-Deficit/Hyperactivity Disorder through the electroencephalogram complexity
There are reasons to suggest that a number of mental disorders may be related to alteration in the neural complexity (NC). Thus, quantitative analysis of NC could be helpful in classifying mental conditions and clarifying our understanding about them. Here, we have worked with youths, typical and with attention-deficit/hyperactivity disorder (ADHD), whose neural complexity was assessed using q-statistics applied to the electroencephalogram (EEG). The EEG was recorded while subjects performed th…

Germanium-based hybrid semiconductor-superconductor topological quantum computing platforms: Disorder effects
Katharina Laubscher, Jay D. Sau, Sankar Das Sarma
https://arxiv.org/abs/2404.16285

Germanium-based hybrid semiconductor-superconductor topological quantum computing platforms: Disorder effects
It was recently suggested that proximitized gate-defined Ge hole nanowires could serve as an alternative materials platform for the realization of topological Majorana zero modes (MZMs). Here, we theoretically study the expected experimental signatures of Ge-based MZMs in tunneling conductance measurements, taking into account that unintentional random disorder is unavoidably present in realistic devices. Explicitly, we present numerically calculated local and nonlocal tunneling conductance spe…

Exploring Physiological Responses in Virtual Reality-based Interventions for Autism Spectrum Disorder: A Data-Driven Investigation
Gianpaolo Alvari, Ersilia Vallefuoco, Melanie Cristofolini, Elio Salvadori, Marco Dianti, Alessia Moltani, Davide Dal Castello, Paola Venuti, Cesare Furlanello
https://arxiv.org/abs/2404.07159…

Exploring Physiological Responses in Virtual Reality-based Interventions for Autism Spectrum Disorder: A Data-Driven Investigation
Virtual Reality (VR) has emerged as a promising tool for enhancing social skills and emotional well-being in individuals with Autism Spectrum Disorder (ASD). Through a technical exploration, this study employs a multiplayer serious gaming environment within VR, engaging 34 individuals diagnosed with ASD and employing high-precision biosensors for a comprehensive view of the participants' arousal and responses during the VR sessions. Participants were subjected to a series of 3 virtual scenarios…

Density matrix renormalization group study of the interacting Kitaev chain with quasi-periodic disorder
K. S. C. Decker, C. Karrasch
https://arxiv.org/abs/2402.12897

Density matrix renormalization group study of the interacting Kitaev chain with quasi-periodic disorder
We document the ground state phase diagram of the one-dimensional Kitaev chain with quasi-periodic disorder in the presence of two-body interactions. Our data was obtained for systems of $L=1000$ sites using large-scale density matrix renormalization group numerics and is benchmarked against known results for the clean system. We demonstrate that moderate quasi-periodic disorder stabilizes the topological phase both for repulsive and attractive interactions. For larger disorder strengths, the s…

A tale of two localizations: coexistence of flat bands and Anderson localization in a photonics-inspired amorphous system
Elizabeth J. Dresselhaus, Alexander Avdoshkin, Zhetao Jia, Matteo Secli, Boubacar Kante, Joel E. Moore
https://arxiv.org/abs/2404.17578

A tale of two localizations: coexistence of flat bands and Anderson localization in a photonics-inspired amorphous system
Emerging experimental platforms use amorphousness, a constrained form of disorder, to tailor meta-material properties. We study localization under this type of disorder in a class of $2D$ models generalizing recent experiments on photonic systems. We explore two kinds of localization that emerge in these models: Anderson localization by disorder, and the existence of compact, macroscopically degenerate localized states as in many crystalline flat bands. We find localization properties to depend…

Germanium-based hybrid semiconductor-superconductor topological quantum computing platforms: Disorder effects
Katharina Laubscher, Jay D. Sau, Sankar Das Sarma
https://arxiv.org/abs/2404.16285

Germanium-based hybrid semiconductor-superconductor topological quantum computing platforms: Disorder effects
It was recently suggested that proximitized gate-defined Ge hole nanowires could serve as an alternative materials platform for the realization of topological Majorana zero modes (MZMs). Here, we theoretically study the expected experimental signatures of Ge-based MZMs in tunneling conductance measurements, taking into account that unintentional random disorder is unavoidably present in realistic devices. Explicitly, we present numerically calculated local and nonlocal tunneling conductance spe…

Critical behavior of the stochastic SIR model on random bond-diluted lattices
Carlos Handrey A. Ferraz, Jos\'e Luiz S. Lima
https://arxiv.org/abs/2403.17975

Critical behavior of the stochastic SIR model on random bond-diluted lattices
In this paper, we investigate the impact of bond-dilution disorder on the critical behavior of the stochastic SIR model. Monte Carlo simulations were conducted using square lattices with first- and second-nearest neighbor interactions. Quenched bond-diluted lattice disorder was introduced into the systems, allowing them to evolve over time. By employing percolation theory and finite-size scaling analysis, we estimate both the critical threshold and leading critical exponent ratios of the model …

This https://arxiv.org/abs/2303.04736 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Rigidity of harmonic functions on the supercritical percolation cluster
We use ideas from quantitative homogenization to show that nonconstant harmonic functions on the percolation cluster cannot satisfy certain structural constraints, for example, a Lipschitz bound. These unique-continuation-type results are false on the full lattice and hence the disorder is utilized in an essential way.

This https://arxiv.org/abs/2401.07137 has been replaced.
initial toot: https://mastoxiv.page/@a…

Ultra-robust topologically protected edge states in quasi-1D systems
In recent years, the study of topologically non-trivial structures in one-dimensional models has been dominated by the Su--Schrieffer--Heeger model due to its simplicity in design and its ability to support edge states with robustness to disorder in couplings, protected by chiral and inversion symmetry. Here, we present a novel study on a zigzag quasi-one-dimensional model, which supports topologically protected edge states without relying on conventional symmetries. Our model utilises next-nei…

Effects of forward disorder on quasi-1D superconductors
Giacomo Morpurgo, Thierry Giamarchi
https://arxiv.org/abs/2403.12597 https://…

Effects of forward disorder on quasi-1D superconductors
We study the competition between disorder and singlet superconductivity in a quasi-1d system. We investigate the applicability of the Anderson theorem, namely that time-reversal conserving (non-magnetic) disorder does not impact the critical temperature, by opposition to time-reversal breaking disorder (magnetic). To do so we examine a quasi-1d system of spin 1/2 fermions with attractive interactions and forward scattering disorder using field theory (bosonization). By computing the superconduc…

This https://arxiv.org/abs/2308.12931 has been replaced.
initial toot: https://mastoxiv.page/@a…

Fragility of surface states in non-Wigner Dyson topological insulators
Topological insulators and superconductors support extended surface states protected against the otherwise localizing effects of static disorder. Specifically, in the Wigner-Dyson insulators belonging to the symmetry classes A, AI, and AII, a band of extended surface states is continuously connected to a likewise extended set of bulk states forming a ``bridge'' between different surfaces via the mechanism of spectral flow. In this work we show that this mechanism is absent in the majority of no…

Validity of annealed approximation in a high-dimensional system
Jaegon Um, Hyunsuk Hong, Hyunggyu Park
https://arxiv.org/abs/2403.14984 https://

Validity of annealed approximation in a high-dimensional system
This study investigates the suitability of the annealed approximation in high-dimensional systems characterized by dense networks with quenched link disorder, employing models of coupled oscillators. We demonstrate that dynamic equations governing dense-network systems converge to those of the complete-graph version in the thermodynamic limit, where link disorder fluctuations vanish entirely. Consequently, the annealed-network systems, where fluctuations are attenuated, also exhibit the same dy…

Successive Phase Transition in Higher-order Topological Anderson Insulators
Aodong Li, Bingcong Xu, Biye Xie
https://arxiv.org/abs/2404.15088 https://

Successive Phase Transition in Higher-order Topological Anderson Insulators
Disorder, traditionally believed to hinder the propagation of waves. has recently been shown to prompt the occurrence of topological phase transitions. For example, when disorder strength continuously increases and surpasses certain critical value, a phase transition from topologically trivial to nontrivial insulating phases occurs. However, in the parameter domain of the nontrivial phase, whether there exists a finer phase diagram that can be further classified by different disorder strengths …

This https://arxiv.org/abs/2402.14765 has been replaced.
initial toot: https://mastoxiv.page/@a…

Proposed real-time charge noise measurement via valley state reflectometry
We theoretically propose a method to perform \textit{in situ} measurements of charge noise during logical operations in silicon quantum dot spin qubits. Our method does not require ancillary spectator qubits but makes use of the valley degree of freedom in silicon. Sharp interface steps or alloy disorder in the well provide a valley transition dipole element that couples to the field of an on-chip microwave resonator, allowing rapid reflectometry of valley splitting fluctuations caused by charg…

Topologically protected flatness in chiral moir\'e heterostructures
Valentin Cr\'epel, Peize Ding, Nishchhal Verma, Nicolas Regnault, Raquel Queiroz
https://arxiv.org/abs/2403.19656

Topologically protected flatness in chiral moiré heterostructures
The observation of delicate correlated phases in twisted heterostructures of graphene and transition metal dichalcogenides suggests an inherent resilience of moiré flat bands against certain types of disorder. We investigate the robustness of moiré flat bands in the chiral limit of the Bistrizer-MacDonald model, applicable to both platforms in certain limits. We show a drastic difference between the protection of the first magic angle and higher magic angles to chiral symmetric disorder such …

Spin Hall Effect: Symmetry Breaking, Twisting, and Giant Disorder Renormalization
David T. S. Perkins, Alessandro Veneri, Aires Ferreira
https://arxiv.org/abs/2403.15229

Spin Hall Effect: Symmetry Breaking, Twisting, and Giant Disorder Renormalization
Atomically-thin materials based on transition metal dichalcogenides and graphene offer a promising avenue for unlocking the mechanisms underlying the spin Hall effect (SHE) in heterointerfaces. Here, we develop a microscopic theory of the SHE for twisted van der Waals heterostructures that fully incorporates twisting and disorder effects, and illustrate the critical role of symmetry breaking in the generation of spin-Hall currents. We find that an accurate treatment of vertex corrections leads …

This https://arxiv.org/abs/2204.10296 has been replaced.
link: https://scholar.google.com/scholar?q=a

Nanoscale electrostatic control in ultra clean van der Waals heterostructures by local anodic oxidation of graphite gates
In an all-van der Waals heterostructure, the active layer, gate dielectrics and gate electrodes are assembled from two-dimensional crystals that have a low density of atomic defects. This design allows two-dimensional electron systems with very low disorder to be created, particularly in heterostructures where the active layer also has intrinsically low disorder, such as crystalline graphene layers or metal dichalcogenide heterobilayers. A key missing ingredient has been nanoscale electrostatic…

This https://arxiv.org/abs/2402.06280 has been replaced.
initial toot: https://mastoxiv.page/@a…

Disorder-Induced Topological Transitions in a Multilayer Topological Insulator
We examine the impact of non-magnetic disorder on the electronic states of a multilayer structure comprising layers of both topological and conventional band insulators. Employing the Burkov-Balents model with renormalized tunneling parameters, we generate phase diagrams correlating with disorder, demonstrating that non-magnetic disorder can induce transitions between distinct topological phases. The subsequent section of our investigation focuses on the scenario where disorder is unevenly dist…

Origin of pinning disorder in magnetic-field-induced Wigner solids
Matthew L. Freeman, P. T. Madathil, L. N. Pfeiffer, K. W. Baldwin, Y. J. Chung, R. Winkler, M. Shayegan, L. W. Engel
https://arxiv.org/abs/2404.07369

Origin of pinning disorder in magnetic-field-induced Wigner solids
At low Landau level filling factors ($ν$), Wigner solid phases of two-dimensional electron systems in GaAs are pinned by disorder, and exhibit a pinning mode, whose frequency is a measure of the disorder that pins the Wigner solid. Despite numerous studies spanning the last three decades, the origin of the disorder that causes the pinning and determines the pinning mode frequency remains unknown. Here we present a study of the pinning mode resonance in the low-$ν$ Wigner solid phases of a ser…

This https://arxiv.org/abs/2306.10041 has been replaced.
initial toot: https://mastoxiv.page/@a…

Disorder effects on the so-called Andreev band in Majorana nanowires
We comment on a recent publication Phys. Rev. Lett. 130, 207001 (2023), pointing out that the periodic model for the superconducting gap and/or the spin splitting used by the authors is artificial and does not apply to any real systems. In addition, we show that the resulting Andreev band introduced by this artificial and unrealistic periodicity is suppressed by the potential disorder invariably present in all experimental systems. The results of this model are therefore contrived and do not ap…

Effect of Uncorrelated On-site Scalar Potential, and Mass Disorder on Transport of Two-Dimensional Dirac Fermions
Arman Duha, Mario Borunda
https://arxiv.org/abs/2403.03914

Effect of Uncorrelated On-site Scalar Potential, and Mass Disorder on Transport of Two-Dimensional Dirac Fermions
We investigate the transport properties of massive Dirac fermions subjected to uncorrelated scalar potential disorder, and mass disorder. Using a finite difference method, the conductance is calculated for a wide variety of combinations of these two disorder strengths. By calculating the scaling of conductivity with system size we find that, depending on the combination, the system can have an insulating, scale invariant, and metallic behavior. We identify the critical values of these disorder …

Effect of Uncorrelated On-site Scalar Potential, and Mass Disorder on Transport of Two-Dimensional Dirac Fermions
Arman Duha, Mario Borunda
https://arxiv.org/abs/2403.03914

Effect of Uncorrelated On-site Scalar Potential, and Mass Disorder on Transport of Two-Dimensional Dirac Fermions
We investigate the transport properties of massive Dirac fermions subjected to uncorrelated scalar potential disorder, and mass disorder. Using a finite difference method, the conductance is calculated for a wide variety of combinations of these two disorder strengths. By calculating the scaling of conductivity with system size we find that, depending on the combination, the system can have an insulating, scale invariant, and metallic behavior. We identify the critical values of these disorder …

This https://arxiv.org/abs/2312.14054 has been replaced.
initial toot: https://mastoxiv.page/@a…

Theory of interlayer exciton dynamics in 2D TMDCs Heterolayers under the influence of strain reconstruction and disorder
Monolayers of transition metal dichalcogenides (TMDC) became one of the most studied nanostructures in the last decade. Combining two different TMDC monolayers results in a heterostructure whose properties can be individually tuned by the twist angle between the lattices of the two van-der-Waals layers and the relative placement of the layers, leading to Moiré cells. For small twist angles, lattice reconstruction leads to strong strain fields in the Moiré cells. In this paper, we combine an e…

This https://arxiv.org/abs/2309.07000 has been replaced.
initial toot: https://mastoxiv.page/@a…

Nonlinear Hall effect on a disordered lattice
The nonlinear Hall effect has recently attracted significant interest due to its potential as a promising spectral tool and device applications. A theory of the nonlinear Hall effect on a disordered lattice is a crucial step towards explorations in realistic devices, but has not been addressed. We study the nonlinear Hall response on a lattice, which allows us to introduce strong disorder numerically. We reveal a disorder-induced fluctuation of the Berry curvature that was not discovered in the…

This https://arxiv.org/abs/2309.07000 has been replaced.
initial toot: https://mastoxiv.page/@a…

Nonlinear Hall effect on a disordered lattice
The nonlinear Hall effect has recently attracted significant interest due to its potential as a promising spectral tool and device applications. A theory of the nonlinear Hall effect on a disordered lattice is a crucial step towards explorations in realistic devices, but has not been addressed. We study the nonlinear Hall response on a lattice, which allows us to introduce strong disorder numerically. We reveal a disorder-induced fluctuation of the Berry curvature that was not discovered in the…