Tootfinder

Bacteria collective motion is scale-free
Benjamin Perez-Estay, Vincent Martinez, Carine Douarche, Jana Schwarz-Linek, Jochen Arlt, Pierre-Henri Delville, Gail McConnell, Wilson C. K. Poon, Anke Lindner, Eric Clement
https://arxiv.org/abs/2509.15918

Bacteria collective motion is scale-free
Suspensions of swimming bacteria interact hydrodynamically over long ranges, organizing themselves into collective states that drive large-scale chaotic flows, often referred to as "bacterial turbulence". Despite extensive experimental and theoretical work, it remains unclear whether an intrinsic length scale underlies the observed patterns. To shed light on the mechanism driving active turbulence, we investigate the emergence of large-scale flows in E. coli suspensions confined within cylindri…

Great Restraining Wall in Multidimentional Collective Variable Space
Zhijun Pan, Maodong Li, Dechin Chen, Yi Isaac Yang
https://arxiv.org/abs/2506.17043 ht…

Great Restraining Wall in Multidimentional Collective Variable Space
Enhanced sampling methods are pivotal for exploring rare events in molecular dynamics (MD), yet face challenges in high-dimensional collective variable (CV) spaces where exhaustive sampling becomes computationally prohibitive. While techniques like metadynamics (MetaD) and path-CV enable targeted free energy surface (FES) reconstruction, they often struggle with confinement stability, hyperparameter sensitivity, and geometric flexibility. This work introduces the Great Restraining Wall (GW) met…

Language-Instructed Reasoning for Group Activity Detection via Multimodal Large Language Model
Jihua Peng, Qianxiong Xu, Yichen Liu, Chenxi Liu, Cheng Long, Rui Zhao, Ziyue Li
https://arxiv.org/abs/2509.16054

Language-Instructed Reasoning for Group Activity Detection via Multimodal Large Language Model
Group activity detection (GAD) aims to simultaneously identify group members and categorize their collective activities within video sequences. Existing deep learning-based methods develop specialized architectures (e.g., transformer networks) to model the dynamics of individual roles and semantic dependencies between individuals and groups. However, they rely solely on implicit pattern recognition from visual features and struggle with contextual reasoning and explainability. In this work, we …

Training Variational Quantum Circuits Using Particle Swarm Optimization
Marco Mordacci, Michele Amoretti
https://arxiv.org/abs/2509.15726 https://arxiv.org…

Training Variational Quantum Circuits Using Particle Swarm Optimization
In this work, the Particle Swarm Optimization (PSO) algorithm has been used to train various Variational Quantum Circuits (VQCs). This approach is motivated by the fact that commonly used gradient-based optimization methods can suffer from the barren plateaus problem. PSO is a stochastic optimization technique inspired by the collective behavior of a swarm of birds. The dimension of the swarm, the number of iterations of the algorithm, and the number of trainable parameters can be set. In this …

Topological Social Choice: Designing a Noise-Robust Polar Distance for Persistence Diagrams
Athanasios Andrikopoulos, Nikolaos Sampanis
https://arxiv.org/abs/2507.14340

Topological Social Choice: Designing a Noise-Robust Polar Distance for Persistence Diagrams
Topological Data Analysis (TDA) has emerged as a powerful framework for extracting robust and interpretable features from noisy high-dimensional data. In the context of Social Choice Theory, where preference profiles and collective decisions are geometrically rich yet sensitive to perturbations, TDA remains largely unexplored. This work introduces a novel conceptual bridge between these domains by proposing a new metric framework for persistence diagrams tailored to noisy preference data.We def…

Collective action gets the goods, yet again.
It seems that the government didn't think Section 107 would hold up in court (at least not with this strike), and the Air Canada employees effectively called their bluff. This is exactly the kind of stand that needs to be taken to keep labor rights from being rolled further and further back.
(Also, I didn't realize just how tightly connected the government is with Air Canada)

Strike 'Ends Unpaid Work' As Union Reaches Deal With Air Canada – The Rover
Low wages and unpaid labour led to flight attendants using food banks, sleeping in cars.

Correcting systematic errors in the likelihood optimization of underdamped Langevin models of molecular dynamics trajectories
David Daniel Girardier, Hadrien Vroylandt, Sara Bonella, Fabio Pietrucci
https://arxiv.org/abs/2506.16272

Correcting systematic errors in the likelihood optimization of underdamped Langevin models of molecular dynamics trajectories
Since Kramers' pioneering work in 1940, significant efforts have been devoted to studying Langevin equations applied to physical and chemical reactions projected onto few collective variables, with particular focus on the inference of their parameters. While the inference for overdamped Langevin equations is well-established and widely applied, a notable gap remains in the literature for underdamped Langevin equations, which incorporate inertial effects and velocities. This gap arises from the …

Statistical Investigation of B-fields in Cores and Filaments Using JCMT/SCUPOL Legacy Survey Archival Data
Puja Porel
https://arxiv.org/abs/2508.15287 https://

Statistical Investigation of B-fields in Cores and Filaments Using JCMT/SCUPOL Legacy Survey Archival Data
SCUPOL, the polarimeter for SCUBA on the James Clerk Maxwell Telescope (JCMT), was used for polarization observations of 104 regions at 850 micron wavelength and 15 arcsec resolution in the mapping mode by Matthews et al. (2009). They presented the polarization values and magnetic field morphologies in these regions. In this work, we took the opportunity to use this big legacy survey data to investigate further the collective statistical properties of the measured polarization in different star…

The Stated Protocol: A Decentralized Framework for Digital Diplomacy
Christopher J. P. Rieckmann
https://arxiv.org/abs/2507.13517 https://

The Stated Protocol: A Decentralized Framework for Digital Diplomacy
International coordination faces significant friction due to reliance on periodic summits, bilateral consultations, and fragmented communication channels that impede rapid collective responses to emerging global challenges while limiting transparency to constituents. We present the Stated Protocol, a decentralized framework that enables organizations to coordinate through standardized text statements published on their website domains. While applicable to all organizations, this work focuses pr…

MACTAS: Self-Attention-Based Module for Inter-Agent Communication in Multi-Agent Reinforcement Learning
Maciej Wojtala, Bogusz Stefa\'nczyk, Dominik Bogucki, {\L}ukasz Lepak, Jakub Strykowski, Pawe{\l} Wawrzy\'nski
https://arxiv.org/abs/2508.13661

MACTAS: Self-Attention-Based Module for Inter-Agent Communication in Multi-Agent Reinforcement Learning
Communication is essential for the collective execution of complex tasks by human agents, motivating interest in communication mechanisms for multi-agent reinforcement learning (MARL). However, existing communication protocols in MARL are often complex and non-differentiable. In this work, we introduce a self-attention-based communication module that exchanges information between the agents in MARL. Our proposed approach is fully differentiable, allowing agents to learn to generate messages in …

Novel Probes of Quark-Gluon Plasma Evolution in Heavy-Ion Collisions With the ATLAS Detector: From Structure of Colliding Nuclei to Collective Expansion of Medium
Somadutta Bhatta
https://arxiv.org/abs/2508.13764

Novel Probes of Quark-Gluon Plasma Evolution in Heavy-Ion Collisions With the ATLAS Detector: From Structure of Colliding Nuclei to Collective Expansion of Medium
Understanding the properties of the quark-gluon plasma (QGP) offers insights into the strong interaction and the conditions of the early universe.Since the QGP cannot be observed directly, its properties must be inferred from the particles emitted as it cools. This dissertation introduces a suite of novel probes based on event-by-event multi-particle correlations allowing us to work backward from final-state particles to constrain the collective evolution, transport properties, and initial cond…

Dispersion of collective modes in spinful fractional quantum Hall states on the sphere
Rakesh K. Dora, Ajit C. Balram
https://arxiv.org/abs/2509.13100 https://

Dispersion of collective modes in spinful fractional quantum Hall states on the sphere
Collective modes capture the dynamical aspects of fractional quantum Hall (FQH) fluids. Depending on the active degrees of freedom, different types of collective modes can arise in a FQH state. In this work, we consider spinful FQH states in the lowest Landau level (LLL) along the Jain sequence of fillings $ν{=}n/(2n{\pm}1)$ and compute the Coulomb dispersion of their spin-flip and spin-conserving collective modes in the spherical geometry. We use the LLL-projected density-wave and composite f…

I take pride in my work, and unapologetically support anarcho-syndicalism, because participating in collective self-management, solidarity, and democratic control over our workplaces would make me even prouder of what I do.
https://social.linux.pizza/@midtsveen/114848469083606916

Measuring Implicit Spatial Coordination in Teams: Effects on Collective Intelligence and Performance
Thuy Ngoc Nguyen, Anita Williams Woolley, Cleotilde Gonzalez
https://arxiv.org/abs/2509.09314

Measuring Implicit Spatial Coordination in Teams: Effects on Collective Intelligence and Performance
Coordinated teamwork is essential in fast-paced decision-making environments that require dynamic adaptation, often without an opportunity for explicit communication. Although implicit coordination has been extensively considered in the existing literature, the majority of work has focused on co-located, synchronous teamwork (such as sports teams) or, in distributed teams, primarily on coordination of knowledge work. However, many teams (firefighters, military, law enforcement, emergency respon…

Asymptotic freedom of dephased charging
Chayan Purkait, B. Prasanna Venkatesh, Gentaro Watanabe
https://arxiv.org/abs/2508.13497 https://arxiv.org/pdf/2508…

Asymptotic freedom of dephased charging
Quantum batteries, small-scale energy storage devices based on quantum systems, offer the potential for enhanced charging performance through quantum effects such as coherence and collectivity. In this work, we study the collective charging of a quantum battery consisting of N qubits, coupled to a driven qubit charger in a star configuration, with controlled pure dephasing acting on the charger. We investigate how an "asymptotic freedom"-like behavior, in which all the energy deposited into the…

Collective decision-making dynamics in hypernetworks
Angela Fontan, Silun Zhang
https://arxiv.org/abs/2509.05182 https://arxiv.org/pdf/2509.05182

Collective decision-making dynamics in hypernetworks
This work describes a collective decision-making dynamical process in a multiagent system under the assumption of cooperative higher-order interactions within the community, modeled as a hypernetwork. The nonlinear interconnected system is characterized by saturated nonlinearities that describe how agents transmit their opinion state to their neighbors in the hypernetwork, and by a bifurcation parameter representing the community's social effort. We show that the presence of higher-order intera…

The Generalist Brain Module: Module Repetition in Neural Networks in Light of the Minicolumn Hypothesis
Mia-Katrin Kvalsund, Mikkel Elle Lepper{\o}d
https://arxiv.org/abs/2507.12473

The Generalist Brain Module: Module Repetition in Neural Networks in Light of the Minicolumn Hypothesis
While modern AI continues to advance, the biological brain remains the pinnacle of neural networks in its robustness, adaptability, and efficiency. This review explores an AI architectural path inspired by the brain's structure, particularly the minicolumn hypothesis, which views the neocortex as a distributed system of repeated modules - a structure we connect to collective intelligence (CI). Despite existing work, there is a lack of comprehensive reviews connecting the cortical column to the …

If there’s one thing I keep coming back to, it’s this: I truly believe work could be so much more rewarding if we collectively tore down the rigid hierarchies and completely did away with bosses. In their place, we’d practice genuine worker self-management. Every decision that shapes our daily lives would be made directly by us, the workers on the shop floor.
With direct democracy at the core, and our union standing not just beside us but as a true expression of our collective will, th…

An AI-Powered Framework for Analyzing Collective Idea Evolution in Deliberative Assemblies
Elinor Poole-Dayan, Deb Roy, Jad Kabbara
https://arxiv.org/abs/2509.12577 https://

An AI-Powered Framework for Analyzing Collective Idea Evolution in Deliberative Assemblies
In an era of increasing societal fragmentation, political polarization, and erosion of public trust in institutions, representative deliberative assemblies are emerging as a promising democratic forum for developing effective policy outcomes on complex global issues. Despite theoretical attention, there remains limited empirical work that systematically traces how specific ideas evolve, are prioritized, or are discarded during deliberation to form policy recommendations. Addressing these gaps, …

Nearly 200 employees of the Federal Emergency Management Agency (FEMA) signed an extraordinary letter sent to Congress on August 25,
denouncing the current administration’s erosion of their work
and warning that it risks the occurrence of another Hurricane Katrina-sized disaster.
More than 30 provided their names; the rest signed anonymously.
Named the "Katrina Declaration",
the letter was one of the most powerful written so far by beleaguered federal …

FEMA Employees Speak Out After Attacks on Workers Warning of Looming Disaster
“The danger posed to our collective communities … is very real,” said one employee who signed a public letter.

Rotational Properties of Superradiant Condensates
Yin-da Guo, Kai-Dong Zhou, Shou-Shan Bao, Hong Zhang
https://arxiv.org/abs/2508.09567 https://arxiv.org/p…

Rotational Properties of Superradiant Condensates
Superradiance enables scalar fields to extract energy and angular momentum from a rotating black hole (BH), leading to the formation of a BH-condensate system. The condensate appears to exhibit global rotation as a rigid body, with phase propagation occurring only in the azimuthal direction, such a picture leads to unphysical superluminal velocities at large distances. In this work, we demonstrate that the apparent rotation is a collective effect arising from local radial, polar, and azimuthal …

Detection of collective and point anomalies at the presence of trend and seasonality
Yiyin Zhang, Florian Pein, Idris Eckley
https://arxiv.org/abs/2508.21128 https://

Detection of collective and point anomalies at the presence of trend and seasonality
Detecting anomalies in time series data is a challenging task with broad relevance in many applications. Existing methods work effectively only under idealized conditions, typically focusing on point anomalies or assuming a constant baseline. Our approach overcomes these limitations by detecting both collective and point anomalies, while allowing for polynomial trends and seasonal patterns. We establish statistical theory demonstrating that our method accurately decomposes the time series into …

Modulation of the Monokinetic Limit for Models of Collective Dynamics
Alina Chertock, Roman Shvydkoy, Trevor Teolis
https://arxiv.org/abs/2508.05478 https://

Modulation of the Monokinetic Limit for Models of Collective Dynamics
In this work, we perform modulation analysis of monokinetic limits from the kinetic Cucker- Smale model to the pressureless Euler alignment system. Two regimes are considered -- a strong Fokker- Planck force with vanishing noise and Knudsen number, and a pure noiseless Vlasov scheme. In the former case, we demonstrate convergence of the modulated profile to the standard Gaussian distribution, while in the latter case, the distribution converges to a profile satisfying an explicit transport equa…

Simulacra Naturae: Generative Ecosystem driven by Agent-Based Simulations and Brain Organoid Collective Intelligence
Nefeli Manoudaki, Mert Toka, Iason Paterakis, Diarmid Flatley
https://arxiv.org/abs/2509.02924

Simulacra Naturae: Generative Ecosystem driven by Agent-Based Simulations and Brain Organoid Collective Intelligence
Simulacra Naturae is a data-driven media installation that explores collective care through the entanglement of biological computation, material ecologies, and generative systems. The work translates pre-recorded neural activity from brain organoids, lab-grown three-dimensional clusters of neurons, into a multi-sensory environment composed of generative visuals, spatial audio, living plants, and fabricated clay artifacts. These biosignals, streamed through a real-time system, modulate emergent …

Phase-Coordinated Multi-Agent Circular Formation Control with Non-Concentric Boundary Constraints
Shubham Singh, Anoop Jain
https://arxiv.org/abs/2509.08534 https://

Phase-Coordinated Multi-Agent Circular Formation Control with Non-Concentric Boundary Constraints
This paper addresses the problem of collective circular motion control for unicycle agents, with the objective of achieving phase coordination of their velocity vectors while ensuring that their trajectories remain confined within a prescribed non-concentric circular boundary. To accommodate such nonuniform motion constraints, we build upon our earlier work and extend the use of Mobius transformation to a multi-agent framework. The Mobius transformation maps two nonconcentric circles to concent…

Electric-Field Control of Josephson Oscillations in Dipolar Bose-Einstein Condensates
David Galvez-Poblete, Roberto E. Troncoso, Guillermo Romero, Alvaro S. Nunez, Sebastian Allende
https://arxiv.org/abs/2508.09343

Electric-Field Control of Josephson Oscillations in Dipolar Bose-Einstein Condensates
We study the dynamic behavior of a Bose-Einstein condensate (BEC) with dipolar interactions when the influence of external electric fields affects the coherent tunneling properties. Here, we propose a tunable platform based on BECs where Josephson oscillations can be engineered and modulated through external electric fields. We develop a theoretical and numerical frame-work that reveals how electric fields affect intercondensate tunneling, phase dynamics, and collective excitations. By employin…

Predicting Structural Relaxation in Supercooled Small Molecules via Molecular Dynamics Simulations and Microscopic Theory
Anh D. Phan, Ngo T. Que, Nguyen T. T. Duyen
https://arxiv.org/abs/2509.12092

Predicting Structural Relaxation in Supercooled Small Molecules via Molecular Dynamics Simulations and Microscopic Theory
Understanding and predicting the glassy dynamics of small organic molecules is critical for applications ranging from pharmaceuticals to energy and food preservation. In this work, we present a theoretical framework that combines molecular dynamics simulations and Elastically Collective Nonlinear Langevin Equation (ECNLE) theory to predict the structural relaxation behavior of small organic glass-formers. By using propanol, glucose, fructose, and trehalose as model systems, we estimate the glas…

Kinetics of Barrier Crossing Events from Temperature Accelerated Sliced Sampling Simulations
Sameer Saurav, Debjit Das, Ramsha Javed, Nisanth N. Nair
https://arxiv.org/abs/2509.05068

Kinetics of Barrier Crossing Events from Temperature Accelerated Sliced Sampling Simulations
Temperature-accelerated sliced sampling (TASS) is a well-established enhanced sampling method that facilitates exhaustive exploration of high-dimensional collective variable (CV) space through directed sampling employing a combination of umbrella restraining biases, metadynamics biases, and temperature acceleration of CVs. In this work, we broaden the applicability of TASS by introducing a protocol for computing rate constants of barrier crossing events. The challenge addressed here is to recov…

Light Manipulation via Tunable Collective Quantum States in Waveguide-Coupled Bragg and Anti-Bragg Superatoms
Zhengqi Niu, Wei Nie, Daqiang Bao, Xiaoliang He, Wanpeng Gao, Kuang Liu, I. -C. Hoi, Yu-xi Liu, Xiaoming Xie, Zhen Wang, Zhi-Rong Lin
https://arxiv.org/abs/2507.00935

Light Manipulation via Tunable Collective Quantum States in Waveguide-Coupled Bragg and Anti-Bragg Superatoms
A many-body quantum system which consists of collective quantum states, such as superradiant and subradiant states, behaves as a multi-level superatom in light-matter interaction. In this work, we experimentally study one-dimensional superatoms in waveguide quantum electrodynamics with a periodic array of superconducting artificial atoms. We engineer the periodic atomic array with two distinct nearest-neighbor spacings, i.e., $d$=$λ_0/2$ and $d$=$λ_0/4$, which correspond to Bragg and anti-Bra…

The Financial Connectome: A Brain-Inspired Framework for Modeling Latent Market Dynamics
Yuda Bi, Vince D Calhoun
https://arxiv.org/abs/2508.02012 https://…

Anharmonic Collective Oscillations in Isotropic Spin Systems and their Spectroscopic Signatures
Anna Fancelli, Mat\'ias G. Gonzalez, Subhankar Khatua, Bella Lake, Michel J. P. Gingras, Jeffrey G. Rau, Johannes Reuther
https://arxiv.org/abs/2508.21211

Anharmonic Collective Oscillations in Isotropic Spin Systems and their Spectroscopic Signatures
Spin waves are the fundamental excitations in magnetically ordered spin systems and are ubiquitously observed in magnetic materials. However, the standard understanding of spin waves as collective spin oscillations in an effective harmonic potential does not consider the possibility of soft modes, such as those due to an effective quartic potential. In this work, we show that such quartic potentials arise under very general conditions in a broad class of isotropic spin systems without a fine-tu…

Optimizing information transmission in the canonical Wnt pathway
Olivier Witteveen, Samuel J. Rosen, Ryan S. Lach, Maxwell Z. Wilson, Marianne Bauer
https://arxiv.org/abs/2506.22633

Optimizing information transmission in the canonical Wnt pathway
Populations of cells regulate gene expression in response to external signals, but their ability to make reliable collective decisions is limited by both intrinsic noise in molecular signaling and variability between individual cells. In this work, we use optogenetic control of the canonical Wnt pathway as an example to study how reliably information about an external signal is transmitted to a population of cells, and determine an optimal encoding strategy to maximize information transmission …

On the hypothesis of a bi-isotropic plasma permeating the interstellar space
Filipe S. Ribeiro, Pedro D. S. Silva, Rodolfo Casana, Manoel M. Ferreira Jr
https://arxiv.org/abs/2508.15879

On the hypothesis of a bi-isotropic plasma permeating the interstellar space
In this work, we study the propagation of electromagnetic waves in a magnetized chiral plasma that pervades the interstellar space. The Maxwell equations, supplemented by bi-isotropic constitutive relations, are rewritten to describe a cold, uniform, and collisionless plasma model that yields new collective electromagnetic modes for distinct pairs of refractive indices associated with right- and left-handed circularly polarized waves. We have investigated the optical behavior through the rotato…

Neural quantum states for emitter dynamics in waveguide QED
Tatiana Vovk, Anka Van de Walle, Hannes Pichler, Annabelle Bohrdt
https://arxiv.org/abs/2508.08964 https://

Neural quantum states for emitter dynamics in waveguide QED
Quantum emitters coupled to one-dimensional waveguides constitute a paradigmatic quantum-optical platform for exploring collective phenomena in open quantum many-body systems. For appropriately spaced emitters, they realize the Dicke model, whose characteristic permutation symmetry allows for efficient exact solutions featuring superradiance. When the emitters are arbitrarily spaced, however, this symmetry is lost and general analytical solutions are no longer available. In this work, we introd…

AnyMAC: Cascading Flexible Multi-Agent Collaboration via Next-Agent Prediction
Song Wang, Zhen Tan, Zihan Chen, Shuang Zhou, Tianlong Chen, Jundong Li
https://arxiv.org/abs/2506.17784

AnyMAC: Cascading Flexible Multi-Agent Collaboration via Next-Agent Prediction
Recent progress in large language model (LLM)-based multi-agent collaboration highlights the power of structured communication in enabling collective intelligence. However, existing methods largely rely on static or graph-based inter-agent topologies, lacking the potential adaptability and flexibility in communication. In this work, we propose a new framework that rethinks multi-agent coordination through a sequential structure rather than a graph structure, offering a significantly larger topo…

Towards a topological data analysis for heavy-ion collisions
Federica Capellino, Andrea Dubla, Silvia Masciocchi, Govert Nijs, Daniel Spitz
https://arxiv.org/abs/2509.02339 http…

Towards a topological data analysis for heavy-ion collisions
The collective expansion of the quark-gluon plasma (QGP) created in heavy-ion collisions suggests that geometry-inspired approaches can be useful in extracting information about the QGP. In this work, a systematic study of observables based on topological data analysis is provided for simulations of heavy-ion collisions. Specifically, we implement persistent homology observables for metric-based complexes in the heavy-ion model Trajectum and provide predictions for Pb-Pb and O-O collisions, whe…

Extending exciton and trion lifetimes in MoSe$_{2}$ with a nanoscale plasmonic cavity
Grace H. Chen, Anchita Addhya, Ian N. Hammock, Philip Kim, Alexander A. High
https://arxiv.org/abs/2507.17879

Extending exciton and trion lifetimes in MoSe$_{2}$ with a nanoscale plasmonic cavity
Excitons in transition metal dichalcogenides (TMDs) have extremely short, picosecond-scale lifetimes which hinders exciton thermalization, limits the emergence of collective coherence, and reduces exciton transport in optoelectronic devices. In this work, we explore an all-optical pathway to extend exciton lifetimes by placing MoSe$_2$ in a deep-subwavelength Fabry-Perot silver cavity. The cavity structure is designed to suppress radiative recombination from in-plane optical dipoles, such as br…

Nonreciprocal and Geometric Frustration in Dissipative Quantum Spins
Guitao Lyu, Myung-Joong Hwang
https://arxiv.org/abs/2508.06444 https://arxiv.org/pdf/2…

Nonreciprocal and Geometric Frustration in Dissipative Quantum Spins
Nonreciprocal interactions often create conflicting dynamical objectives that cannot be simultaneously satisfied, leading to nonreciprocal frustration. On the other hand, geometric frustration arises when conflicting static objectives in energy minimization cannot be satisfied. In this work, we show that nonreciprocal interaction among three collective quantum spins, mediated by a damped cavity, induces not only nonreciprocal frustration, intrinsic to nonreciprocity, but also geometric frustrat…

Bridging Machine Learning and Glassy Dynamics Theory for Predictive Polymer Modeling
Anh D. Phan, Ngo T. Que, Nguyen T. T. Duyen, Phan Thanh Viet, Quach K. Quang, Baicheng Mei
https://arxiv.org/abs/2507.06194

Bridging Machine Learning and Glassy Dynamics Theory for Predictive Polymer Modeling
Understanding and predicting the glassy dynamics of polymers remain fundamental challenges in soft matter physics. While the Elastically Collective Nonlinear Langevin Equation (ECNLE) theory has been successful in describing relaxation dynamics, its practical application to polymers depends on a thermal mapping to connect theory with experiment, which in turn requires detailed thermodynamic data. Such data may not be available for chemically complex or newly designed polymers. In this work, we …

Density-dependent transport coefficients in two-dimensional cellular aggregates
Subhadip Chakraborti, Vasily Zaburdaev
https://arxiv.org/abs/2507.19919 https://

Density-dependent transport coefficients in two-dimensional cellular aggregates
The large-scale collective behavior of biological systems can be characterized by macroscopic transport, which arises from the non-equilibrium microscopic interactions among individual constituents. A prominent example is the formation of dynamic aggregates by motile eukaryotic cells or bacteria mediated by active contractile forces. In this work, we develop the two-dimensional fluctuating hydrodynamics theory based on the microscopic dynamics of a model system of aggregation by \textit{Neisser…

Cluster-diagrammatic D-TRILEX approach to non-local electronic correlations
F\'elix Fossati, Evgeny A. Stepanov
https://arxiv.org/abs/2507.06015 https:…

Cluster-diagrammatic D-TRILEX approach to non-local electronic correlations
In this work, we extend the theoretical approach known as "D-TRILEX", developed for solving correlated electronic systems, to a cluster reference system for the diagrammatic expansion. This framework allows us to consistently combine the exact treatment of short-range correlation effects within the cluster, with an efficient diagrammatic description of the long-range charge and spin collective fluctuations beyond the cluster. We demonstrate the effectiveness of our approach by applying it to th…

Optimal distillation of photonic indistinguishability
Francesco Hoch, Anita Camillini, Giovanni Rodari, Eugenio Caruccio, Gonzalo Carvacho, Taira Giordani, Riccardo Albiero, Niki Di Giano, Giacomo Corrielli, Francesco Ceccarelli, Roberto Osellame, Marco Robbio, Leonardo Novo, Nicol\`o Spagnolo, Ernesto F. Galv\~ao, Fabio Sciarrino
https://…

Optimal distillation of photonic indistinguishability
Imperfect photons' indistinguishability limits the performance of photonic quantum communication and computation . Distillation protocols, inspired by entanglement purification, enhance photons' indistinguishability by leveraging quantum interference in linear optical circuits. In this work, we present a three-photon distillation protocol optimized to achieve the maximum visibility gain, which requires consideration of multi-photon effects such as collective photonic phases. We employ interfero…

A Clockwork Quantum: Symmetry, Noise, and the Emergence of Quantum Order
Eric R. Bittner, Bhavay Tyagi
https://arxiv.org/abs/2507.19348 https://arxiv.org/p…

A Clockwork Quantum: Symmetry, Noise, and the Emergence of Quantum Order
We present a concise review and perspective on noise-induced synchronization and coherence protection in open quantum systems, with emphasis on recent work involving coupled spins, oscillators, and anyons. When local environments exhibit internal correlations, the structure of the noise determines which collective modes become decoherence-protected. This leads to steady-state entanglement, phase locking, and exceptional points (EPs) in the Liouvillian spectrum, signaling a collapse of the mode …

Decoherence-free interaction and maximally entangled state generation in double-giant-atom semi-infinite waveguide systems
Jie Liu, Yue Cai, Lei Tan
https://arxiv.org/abs/2508.17616

Decoherence-free interaction and maximally entangled state generation in double-giant-atom semi-infinite waveguide systems
Giant atoms are artificial atoms that can couple to a waveguide non-locally. Previous work has shown that two giant atoms in a braided configuration can interact through a one-dimensional infinite waveguide, with both individual and collective atomic relaxation being fully suppressed. In this paper, however, we show that the decoherence-free interaction (DFI) between two giant atoms can be realized in both braided and nested configurations when the waveguide is semi-infinite. This protected int…

Error recovery protocols within metastable Decoherence-Free Subspaces
Thomas Botzung, Eliana Fiorelli
https://arxiv.org/abs/2506.19631 https://

Error recovery protocols within metastable Decoherence-Free Subspaces
Open quantum systems governed by quantum master equations can exhibit quantum metastability, where decoherence-free subspaces (DFS) remain approximately invariant for long transient times before relaxing to a unique steady state. In this work, we explore the use of such metastable DFS as code spaces for passive quantum error correction. We focus on two representative models: a two-qubit system under collective dissipation, and a nonlinear driven-dissipative Kerr resonator. After characterizing …