Tootfinder

I'm not a fancy man, so a $6 watch will do. 🤷
#WristShot

Same same but different 👀
cc @… @…

Various Artists – HB Parade 2
#acoustic

Better weather today 😀 Doing the running belt with water now too, sucks to be without hydration even on these short runs in higher temps. Also made a friend (non-human) 😏
#running #runnersofmastodon

lesmis: Les Misérables coappearances
The network of scene coappearances of characters in Victor Hugo's novel "Les Miserables". Edge weights denote the number of such occurrences.
This network has 77 nodes and 254 edges.
Tags: Social, Fictional, Weighted
https://networks.skewed.de/net/lesmis

Discover ColPali at Berlin Buzzwords 2025 with Sonam Pankaj. This session covers what ColPali is, how its "late-interaction" works, and how you can deploy its quantised version on your laptop.
Learn more: https://2025.berlinbuzzwords.de/sessio

"Don't Go To America: Your Data Puts You At Risk."
#travel

Don't Go To America: Your Data Puts You At Risk.
No, that trip to Disneyland really isn't worth it.

Vorschlag zum Redesign der Flagge der Bundesrepublik Deutschland:
#Klöckner #Vielfalt #Bundestag

När Björn af Kleen skriver så här är han i världsklass. https://www.dn.se/varlden/bjorn-av-kleen-trumpvaljare-har-forvandlat-misstankte-mordaren-till-demokrat/

Trumpväljare har förvandlat misstänkt mördare till demokrat
Befolkningen i jordbruksbygden där mördaren Vance Boelter bor är inte rädd för honom – de kan skydda sig med vapen om han dyker upp i natt.

Luca Faloni Baseball Cap LINEN $ 220
Made in It;ay.
No logos on them
#Faloni
#noMAGA

At the end of March we decided to switch to a cheaper electric&gas company. The old company handled the disconnection process starting April 9th, which will be fully completed by April 30th.
This is the complete list of spam calls I received until yesterday.
Luckily I know how to handle the situation, still it seems to me unreal and crazy.
I'll be updating the graph every now and then just to fully understand the madness.

Some thoughts:
- While the "mini" part of minirack might be debatable for this build, the footprint of my Proxmox cluster has become miniscule when compared to the size of three full-sized ATX builds.
- The Minisforum MS-A2s are very warm bois. Keeping the cables clear from behind the server nodes will pay off tons later as the hot air is unobstructed.
- Putting those massive power bricks into the bottom of the minirack is not going to work. I'm not sure exactl…

Heute Hochzeitstag Nr. 29.
Erstmal mit der Fußballfreundin ins Stadion gehen 😎
#Fohlenelf #U17DM

Accurate and scalable exchange-correlation with deep learning
Giulia Luise, Chin-Wei Huang, Thijs Vogels, Derk P. Kooi, Sebastian Ehlert, Stephanie Lanius, Klaas J. H. Giesbertz, Amir Karton, Deniz Gunceler, Megan Stanley, Wessel P. Bruinsma, Lin Huang, Xinran Wei, Jos\'e Garrido Torres, Abylay Katbashev, B\'alint M\'at\'e, S\'ekou-Oumar Kaba, Roberto Sordillo, Yingrong Chen, David B. Williams-Young, Christopher M. Bishop, Jan Hermann, Rianne van den Berg, Paola Gor…

Accurate and scalable exchange-correlation with deep learning
Density Functional Theory (DFT) is the most widely used electronic structure method for predicting the properties of molecules and materials. Although DFT is, in principle, an exact reformulation of the Schrödinger equation, practical applications rely on approximations to the unknown exchange-correlation (XC) functional. Most existing XC functionals are constructed using a limited set of increasingly complex, hand-crafted features that improve accuracy at the expense of computational efficien…

Bulk Spacetime Encoding via Boundary Ambiguities
Zhenkang Lu, Cheng Ran, Shao-feng Wu
https://arxiv.org/abs/2506.12890 https://arxiv.…

Bulk Spacetime Encoding via Boundary Ambiguities
We propose a method to reconstruct the exterior of a static, planar-symmetric black hole from an infinite set of discrete momentum-space locations, known as pole-skipping points, where the boundary Green's function becomes ambiguous. The reconstruction is fully analytical and involves solving only linear equations. It further enables a reinterpretation of any pure gravitational field equation in pole-skipping data. Moreover, our method reveals that the pole-skipping points are redundant: only a…

BELIEVE in YOURSELF

Ein Zusammenbruch der Atlantischen #Umwälzzirkulation (#AMOC) könnte laut einer neuen Studie drastische Folgen für #Europa haben. Das ist nicht neu und der

Atlantische Umwälzzirkulation: So frostig würde es in Europa, sollten die Meeresströmungen zusammenbrechen
Mehr Winterstürme, die Inseln des Wattenmeers mit einer Eisschicht bedeckt: Dieses Szenario entwirft eine Studie für Europa, sollte die Atlantische Umwälzzirkulation kollabieren. Auch in Berlin könnte es kalt werden.

Communication Complexity of Exact Sampling under R\'enyi Information
Spencer Hill, Fady Alajaji, Tam\'as Linder
https://arxiv.org/abs/2506.12219 ht…

Communication Complexity of Exact Sampling under Rényi Information
We study the problem of communicating a sample from a probability distribution $P$ given shared access to a sequence distributed according to another probability distribution $Q$. Li and El Gamal used the Poisson functional representation to show that the minimum expected message length to communicate a sample from $P$ can be upper bounded by $D(P||Q) + \log (D(P||Q) + 1) + 4$, where $D(\, \cdot \, || \, \cdot\, )$ is the Kullback-Leibler divergence. We generalize …

#Blakes7 Series C, Episode 06 - City at the Edge of the World
KERRIL: No! You can push people too far.
SHERM: You should remember that.
KERRIL: I said people, not garbage.
SHERM: Garbage!
BAYBAN: Kerril - Sherm - out. [Kerril and Sherm leave]

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

vitalics/rslike: Rust-like but for TypeScript/JavaScript
https://github.com/vitalics/rslike

Blick von der S-Bahn auf die Plumpe, früher Standort des Hertha-Stadions
#meinwedding #wedding65 #berlinwedding

@… Für dich im Urlaub fotografiert (Saragossa) 😅

"Letztlich aber, sagt der Menschenrechtsanwalt [Wolfgang Kaleck], sei die Frage nach einem Völkermord zweitrangig. Denn für Kaleck steht es außer Frage, dass in #Gaza mindestens #Kriegsverbrechen und Verbrechen gegen die Menschlichkeit begangen werden. "

SZ-Podcast: Wolfgang Kaleck über den Begriff des Völkermords und den Nahost-Krieg
Der Menschenrechtsanwalt erklärt bei Carolin Emcke, welche juristischen Kriterien dafür sprechen, dass Israel Völkermord in Gaza begeht.

"the additional expenditure on the NHS is not about improving our living standards, but about correcting the physical consequences of the appalling food that the neoliberal food supply industry is delivering to us, which is grossly detrimental to our health. We are not, in other words, better off as a consequence of this additional expenditure" -- @…

Neoliberalism is consuming our well-being
As The Guardian has noted: Britain is on track to become a “National Health State” where half of all public spending is allocated to the NHS and social care by the end of the decade, according to a leading thinktank. They added: As the chancellor came under pressure on Thursday to defend her...

Photographed a new lupine — harlequin lupine, Lupinus stiversii — in Yosemite National Park over the weekend
#naturalist

Give your CD tray a second life in your #garden as a #rasperry shelf!

Die ePetition 179564 an den Bundestag aus dem Bereich Wahlrecht mit dem Titel
Änderung des Wahlrechts
kann bis zum Dienstag 22. Juli 2025 01:00 UTC mitgezeichnet werden und lautet
Mit der Petition wird eine Änderung des Wahlrechts gefordert.
und wird begründet
Die Erststimme (Wahl der Direktkandidaten/Wahlkreisabgeordneten) und die Zweitstimme (Wahl einer Liste) wird unabhängig voneinender vergeben. Jeder Wähler wählt mit der Erststimme einen Wahlkreisabgeordnet…

Hello little fella

What if I test out treating myself like I'm a person who doesn't deserve to be paralysed by shame? What if I test out being compassionate to myself instead of yelling at myself? https://www.

Natural Language Guided Ligand-Binding Protein Design
Zhenqiao Song, Ramith Hettiarachchi, Chuan Li, Jianwen Xie, Lei Li
https://arxiv.org/abs/2506.09332 h…

Natural Language Guided Ligand-Binding Protein Design
Can AI protein models follow human language instructions and design proteins with desired functions (e.g. binding to a ligand)? Designing proteins that bind to a given ligand is crucial in a wide range of applications in biology and chemistry. Most prior AI models are trained on protein-ligand complex data, which is scarce due to the high cost and time requirements of laboratory experiments. In contrast, there is a substantial body of human-curated text descriptions about protein-ligand interac…

Thank you for a great #QGIS2025 to all organizers and participants

aktuelles #Wetter #Behrendorf #Wische 12-06-2025 05:15
Temperatur: (min: 7,1C) 7,4C (max: 12,0C)
Feuchte: 99%
Luftdruck: 1022,7 hPa (gleichbleibend)
Windrichtung: N/A Grad
W…

Orbit dimensions in linear and Gaussian quantum optics
Eliott Z. Mamon
https://arxiv.org/abs/2506.07995 https://arxiv.org/pdf/2506.07…

Orbit dimensions in linear and Gaussian quantum optics
In sub-universal quantum platforms such as linear or Gaussian quantum optics, quantum states can behave as different resources, in regard to the extent of their accessible state space (called their orbit) under the action of the restricted unitary group. We propose to study the dimension of a quantum state's orbit (as a manifold in the Hilbert space), a simple yet nontrivial topological property that can quantify "how many" states it can reach. As natural invariants under the group, these struc…

Adversarial Attack Classification and Robustness Testing for Large Language Models for Code
Yang Liu, Armstrong Foundjem, Foutse Khomh, Heng Li
https://arxiv.org/abs/2506.07942

Adversarial Attack Classification and Robustness Testing for Large Language Models for Code
Large Language Models (LLMs) have become vital tools in software development tasks such as code generation, completion, and analysis. As their integration into workflows deepens, ensuring robustness against vulnerabilities especially those triggered by diverse or adversarial inputs becomes increasingly important. Such vulnerabilities may lead to incorrect or insecure code generation when models encounter perturbed task descriptions, code, or comments. Prior research often overlooks the role of …

Camphor Tree (Laurel Family). LA Arboretum, Arcadia, California, USA. April, 2025. #laarboretum #camphortree #laureltree

Divisibility of Griesmer Codes
Haihua Deng, Hexiang Huang, Qing Xiang
https://arxiv.org/abs/2506.07846 https://arxiv.org/pdf/2506.078…

Divisibility of Griesmer Codes
In this paper, we consider Griesmer codes, namely those linear codes meeting the Griesmer bound. Let $C$ be an $[n,k,d]_q$ Griesmer code with $q=p^f$, where $p$ is a prime and $f\ge1$ is an integer. In 1998, Ward proved that for $q=p$, if $p^e|d$, then $p^e|\mathrm{wt}(c)$ for all $c\in C$. In this paper, we show that if $q^e|d$, then $C$ has a basis consisting of $k$ codewords such that the first $\min\left\{e+1,k\right\}$ of them span a Griesmer subcode with constant weight $d$…

#Blakes7 Series B, Episode 04 - Horizon
BLAKE: Look at me, Jenna. Concentrate. The whole idea is - is to disorientate you.
JENNA: It doesn't seem to help.
BLAKE: When they ask questions, pretend you're dizzy.
JENNA: I AM dizzy.

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

lkml_reply: Linux kernel reply network
A network of replies among email address found on the Linux kernel mailing list. Nodes are email addresses and each directed edge represents a reply from email address i to email address j. The date of this snapshot is uncertain.
This network has 63399 nodes and 1096440 edges.
Tags: Social, Communication, Unweighted, Multigraph, Timestamps

High resolution quantum enhanced phase imaging of cells
Alberto Paniate, Giuseppe Ortolano, Sarika Soman, Marco Genovese, Ivano Ruo Berchera
https://arxiv.org/abs/2506.07965

High resolution quantum enhanced phase imaging of cells
Recovering both amplitude and phase information from a system is a fundamental goal of optical imaging. At the same time, it is crucial to use a low photon dose to avoid altering the system, particularly when dealing with biological samples. Quantum imaging offers a powerful approach for extracting more information per photon than classical techniques, which are ultimately limited by shot-noise. However, the trade-off between quantum noise reduction and spatial resolution has been considered a …

“I tasted a little tear gas. It tasted like fascism”
#NotAllHeroesWearCapes

Towards a Small Language Model Lifecycle Framework
Parsa Miraghaei, Sergio Moreschini, Antti Kolehmainen, David H\"astbacka
https://arxiv.org/abs/2506.07695

Towards a Small Language Model Lifecycle Framework
Background: The growing demand for efficient and deployable language models has led to increased interest in Small Language Models (SLMs). However, existing research remains fragmented, lacking a unified lifecycle perspective. Objective: This study aims to define a comprehensive lifecycle framework for SLMs by synthesizing insights from academic literature and practitioner sources. Method: We conducted a comprehensive survey of 36 works, analyzing and categorizing lifecycle-relevant techniq…

A Note on Reconfiguration Graphs of Cliques
Quan N. Lam, Huu An Phan, Duc A. Hoang
https://arxiv.org/abs/2506.07821 https://arxiv.org…

A Note on Reconfiguration Graphs of Cliques
In a reconfiguration setting, each clique of a graph $G$ is viewed as a set of tokens placed on vertices of $G$ such that no vertex has more than one token and any two tokens are adjacent. Additionally, three well-known reconfiguration rules have been studied in the literature: Token Jumping ($\mathsf{TJ}$, which involves moving a token to any unoccupied vertex), Token Sliding ($\mathsf{TS}$, which involves moving a token to an adjacent unoccupied vertex), and Token Addition/Removal ($\mathsf{T…

Relativistic Collapse Model with Quantised Time Variables
Daniel J. Bedingham, Philip Pearle
https://arxiv.org/abs/2506.07959 https://

Relativistic Collapse Model with Quantised Time Variables
A relativistic collapse model for distinguishable particles is presented. Position and time, for each particle, are the fundamental operators of the theory. The Schrödinger equation is of the CSL form, with a Hermitian Hamiltonian and an anti-Hermitian, white-noise dependent, Hamiltonian. It generates state vector evolution parametrised by an "evolution parameter". It is shown how this can be interpreted as an evolving state in spacetime with collapses satisfying Born rule probabilities, and h…

pokec: Pokec online social network (2012)
The online social network of Pokec, a popular OSN in Slovakia, from 2012. Date covers about 10 years and more than 1.6 million people. Profile data contains gender, age, hobbies, interest, education etc. Profile metadata are in Slovak language. Friendships in Pokec are oriented.
This network has 1632804 nodes and 30622564 edges.
Tags: Social, Online, Metadata

Centrality Change Proneness: an Early Indicator of Microservice Architectural Degradation
Alexander Bakhtin, Matteo Esposito, Valentina Lenarduzzi, Davide Taibi
https://arxiv.org/abs/2506.07690

Centrality Change Proneness: an Early Indicator of Microservice Architectural Degradation
Over the past decade, the wide adoption of Microservice Architecture has required the identification of various patterns and anti-patterns to prevent Microservice Architectural Degradation. Frequently, the systems are modelled as a network of connected services. Recently, the study of temporal networks has emerged as a way to describe and analyze evolving networks. Previous research has explored how software metrics such as size, complexity, and quality are related to microservice centrality in…

Reading Command output line by line
Sometimes, you want to execute a system command from within a Go app and process it's output line-by-line in a streaming fashion.
https://www.yellowduck.be/posts/reading-command-output-line-by-line/

Algebraic Geometry of Cactus, Pascal, and Pappus Matroids
Emiliano Liwski, Fatemeh Mohammadi, Lisa Vandebrouck
https://arxiv.org/abs/2506.07757 https://

Algebraic Geometry of Cactus, Pascal, and Pappus Matroids
We study rank-three matroids, known as point-line configurations, and their associated matroid varieties, defined as the Zariski closures of their realization spaces. Our focus is on determining finite generating sets of defining equations for these varieties, up to radical, and describing the irreducible components of the corresponding circuit varieties. We generalize the notion of cactus graphs to matroids, introducing a family of point-line configurations whose underlying graphs are cacti. O…

Stark Tuning and Charge State Control in Individual Telecom C-Band Quantum Dots
N. J. Martin, A. J. Brash, A. Tomlinson, E. M. Sala, E. O. Mills, C. L. Phillips, R. Dost, L. Hallacy, P. Millington-Hotze, D. Hallett, K. A. O'Flaherty, J. Heffernan, M. S. Skolnick, A. M Fox, L. R. Wilson
https://arxiv.org/abs/2506.07951…

Stark Tuning and Charge State Control in Individual Telecom C-Band Quantum Dots
Telecom-wavelength quantum dots (QDs) are emerging as a promising solution for generating deterministic single-photons compatible with existing fiber-optic infrastructure. Emission in the low-loss C-band minimizes transmission losses, making them ideal for long-distance quantum communication. In this work, we present the first demonstration of both Stark tuning and charge state control of individual InAs/InP QDs operating within the telecom C-band. These QDs are grown by droplet epitaxy and emb…

Leveraging Network Methods for Hub-like Microservice Detection
Alexander Bakhtin, Matteo Esposito, Valentina Lenarduzzi, Davide Taibi
https://arxiv.org/abs/2506.07683

Leveraging Network Methods for Hub-like Microservice Detection
Context: Microservice Architecture is a popular architectural paradigm that facilitates flexibility by decomposing applications into small, independently deployable services. Catalogs of architectural anti-patterns have been proposed to highlight the negative aspects of flawed microservice design. In particular, the Hub-like anti-pattern lacks an unambiguous definition and detection method. Aim: In this work, we aim to find a robust detection approach for the Hub-like microservice anti-pattern …

Wreath Generalization of Littlewood Reciprocity
Milo Bechtloff Weising
https://arxiv.org/abs/2506.07727 https://arxiv.org/pdf/2506.07…

Wreath Generalization of Littlewood Reciprocity
We generalize Littlewood's reciprocity formula for the restriction coefficients between $\mathrm{GL}_n(\mathbb{C})$ and the symmetric group of permutation matrices $\mathfrak{S}_n$ to the case of the wreath product groups $μ_m^n\rtimes \mathfrak{S}_n $.

Entropic Dynamics approach to Relational Quantum Mechanics
Ariel Caticha, Hassaan Saleem
https://arxiv.org/abs/2506.07921 https://arx…

Entropic Dynamics approach to Relational Quantum Mechanics
The general framework of Entropic Dynamics (ED) is used to construct non-relativistic models of relational quantum mechanics from well known inference principles -- probability, entropy and information geometry. Although only partially relational -- the absolute structures of simultaneity and Euclidean geometry are still retained -- these models provide a useful testing ground for ideas that will prove useful in the context of more realistic relativistic theories. The fact that in ED the positi…

Evaluating LLMs Effectiveness in Detecting and Correcting Test Smells: An Empirical Study
E. G. Santana Jr, Jander Pereira Santos Junior, Erlon P. Almeida, Iftekhar Ahmed, Paulo Anselmo da Mota Silveira Neto, Eduardo Santana de Almeida
https://arxiv.org/abs/2506.07594

Evaluating LLMs Effectiveness in Detecting and Correcting Test Smells: An Empirical Study
Test smells indicate poor development practices in test code, reducing maintainability and reliability. While developers often struggle to prevent or refactor these issues, existing tools focus primarily on detection rather than automated refactoring. Large Language Models (LLMs) have shown strong potential in code understanding and transformation, but their ability to both identify and refactor test smells remains underexplored. We evaluated GPT-4-Turbo, LLaMA 3 70B, and Gemini-1.5 Pro on Pyth…

Refuting Perfect Matchings in Spectral Expanders is Hard
Ari Biswas, Rajko Nenadov
https://arxiv.org/abs/2506.07700 https://arxiv.org…

Refuting Perfect Matchings in Spectral Expanders is Hard
This work studies the complexity of refuting the existence of a perfect matching in spectral expanders with an odd number of vertices, in the Polynomial Calculus (PC) and Sum of Squares (SoS) proof system. Austrin and Risse [SODA, 2021] showed that refuting perfect matchings in sparse $d$-regular \emph{random} graphs, in the above proof systems, with high probability requires proofs with degree $Ω(n/\log n)$. We extend their result by showing the same lower bound holds for \emph{all} $d$-regul…

Protein folding with an all-to-all trapped-ion quantum computer
Sebasti\'an V. Romero, Alejandro Gomez Cadavid, Pavle Nika\v{c}evi\'c, Enrique Solano, Narendra N. Hegade, Miguel Angel Lopez-Ruiz, Claudio Girotto, Masako Yamada, Panagiotis Kl. Barkoutsos, Ananth Kaushik, Martin Roetteler
https://arxiv.org/abs/2506.07866…

Protein folding with an all-to-all trapped-ion quantum computer
We experimentally demonstrate that the bias-field digitized counterdiabatic quantum optimization (BF-DCQO) algorithm, implemented on IonQ's fully connected trapped-ion quantum processors, offers an efficient approach to solving dense higher-order unconstrained binary optimization (HUBO) problems. Specifically, we tackle protein folding on a tetrahedral lattice for up to 12 amino acids, representing the largest quantum hardware implementations of protein folding problems reported to date. Additi…

IntenTest: Stress Testing for Intent Integrity in API-Calling LLM Agents
Shiwei Feng, Xiangzhe Xu, Xuan Chen, Kaiyuan Zhang, Syed Yusuf Ahmed, Zian Su, Mingwei Zheng, Xiangyu Zhang
https://arxiv.org/abs/2506.07524

IntenTest: Stress Testing for Intent Integrity in API-Calling LLM Agents
LLM agents are increasingly deployed to automate real-world tasks by invoking APIs through natural language instructions. While powerful, they often suffer from misinterpretation of user intent, leading to the agent's actions that diverge from the user's intended goal, especially as external toolkits evolve. Traditional software testing assumes structured inputs and thus falls short in handling the ambiguity of natural language. We introduce IntenTest, an API-centric stress testing framework th…

A Family of Non-Periodic Tilings, Describable Using Elementary Tools and Exhibiting a New Kind of Structural Regularity
Miki Imura
https://arxiv.org/abs/2506.07638

A Family of Non-Periodic Tilings, Describable Using Elementary Tools and Exhibiting a New Kind of Structural Regularity
We present a construction of a family of non-periodic tilings using elementary tools such as modular arithmetic and vector geometry. These tilings exhibit a distinct type of structural regularity, which we term modulo-staggered rotational symmetry. The construction is self-contained and does not rely on previous tiling theories or systems.

Deep reinforcement learning for near-deterministic preparation of cubic- and quartic-phase gates in photonic quantum computing
Amanuel Anteneh L\'eandre Brunel, Carlos Gonz\'alez-Arciniegas, Olivier Pfister
https://arxiv.org/abs/2506.07859

Deep reinforcement learning for near-deterministic preparation of cubic- and quartic-phase gates in photonic quantum computing
Cubic-phase states are a sufficient resource for universal quantum computing over continuous variables. We present results from numerical experiments in which deep neural networks are trained via reinforcement learning to control a quantum optical circuit for generating cubic-phase states, with an average success rate of 96%. The only non-Gaussian resource required is photon-number-resolving measurements. We also show that the exact same resources enable the direct generation of a quartic-phase…

Introducing a vertex polynomial invariant for embedded graphs
Qi Yan, Qingying Deng, Metrose Metsidik
https://arxiv.org/abs/2506.07522 https://

Introducing a vertex polynomial invariant for embedded graphs
The ribbon group action extends geometric duality and Petrie duality by defining two embedded graphs as twisted duals precisely when they lie within the same orbit under this group action. Twisted duality yields numerous novel properties of fundamental graph polynomials. In this paper, we resolve a problem raised by Ellis-Monaghan and Moffatt [Trans. Amer. Math. Soc. 364 (2012), 1529--1569] for vertex counts by introducing the vertex polynomial: a generating function quantifying vertex distribu…

Clock Synchronization for Drone-Based Entanglement Quantum Key Distribution
Jinquan Huang, Bangying Tang, Hui Han, JianJi Yi, Bo Xu, Chunqing Wu, Xiangwei Zhu, Wanrong Yu, Huicun Yu, Jiahao Li, Shihai Sun, Bo Liu
https://arxiv.org/abs/2506.07831

Clock Synchronization for Drone-Based Entanglement Quantum Key Distribution
Drone-based entanglement distribution provides full spatiotemporal coverage for quantum networks, enabling quantum key distribution (QKD) in dynamic environments. The security of QKD fundamentally depends on high-fidelity quantum state measurements, for which high-precision clock synchronization is indispensable, as timing jitter is inversely correlated with quantum state fidelity. However, drone-based clock synchronization is constrained by SWaP (Size, Weight, and Power) limitations and dynami…

A weighted quantum ensemble of homogeneous quantum classifiers
Emiliano Tolotti, Enrico Blanzieri, Davide Pastorello
https://arxiv.org/abs/2506.07810 https…

A weighted quantum ensemble of homogeneous quantum classifiers
Ensemble methods in machine learning aim to improve prediction accuracy by combining multiple models. This is achieved by ensuring diversity among predictors to capture different data aspects. Homogeneous ensembles use identical models, achieving diversity through different data subsets, and weighted-average ensembles assign higher influence to more accurate models through a weight learning procedure. We propose a method to achieve a weighted homogeneous quantum ensemble using quantum classifie…

Uniform \v{S}olt\'es' hypergraphs and \v{S}olt\'es' weighted graphs
Stijn Cambie, Ajay Tiwari
https://arxiv.org/abs/2506.07511 https://

Uniform Šoltés' hypergraphs and Šoltés' weighted graphs
A Šoltés' hypergraph is a hypergraph for which the removal of any of its vertices does not change its total distance. We prove that every uniform Šoltés' hypergraph has order at least $10$, there exist uniform Šoltés' hypergraphs for almost every order or uniformity, and there exist a non-regular uniform Šoltés' hypergraph. By also providing infinitely many weighted Šoltés' graphs, we conclude that Šoltés' problem can be answered positively for the most natural generalisations of gr…

In-situ tuning of cavity dissipation and a topological transition in an atom-nanotip-cavity system
Taegyu Ha, Kiyanoush Goudarzi, Dowon Lee, Donggeon Kim, Eunchul Jeong, Uijin Kim, Myunghun Kim, Jinuk Kim, Moonjoo Lee
https://arxiv.org/abs/2506.07800

In-situ tuning of cavity dissipation and a topological transition in an atom-nanotip-cavity system
We theoretically investigate a method for tuning a dissipation rate in an atom-cavity system. By inserting a nanotip into the cavity mode, we estimate that the cavity dissipation rate increases by a factor of approximately 20, due to the scattering loss at the tip. As applications of our in-situ technique, we demonstrate that an exceptional line can be obtained when a single atom or ion is coupled to the resonator. Moreover, the position of an exceptional point is tuned by adjusting the decay r…

Perfect state transfer in Grover walks on association schemes and distance-regular graphs
Koushik Bhakta, Bikash Bhattacharjya
https://arxiv.org/abs/2506.07439

Perfect state transfer in Grover walks on association schemes and distance-regular graphs
This paper investigates perfect state transfer in Grover walks, a model of discrete-time quantum walks. We establish a necessary and sufficient condition for the occurrence of perfect state transfer on graphs belonging to an association scheme. Our focus includes specific association schemes, namely the Hamming and Johnson schemes. We characterize all graphs on the classes of Hamming and Johnson schemes that exhibit perfect state transfer. Furthermore, we study perfect state transfer on distanc…

Experimental Test of the Principle of Tomographic Locality
Tristan S. Lismer, Kaleb B. Felefele, Robert W. Spekkens, Kevin J. Resch
https://arxiv.org/abs/2506.07775

Experimental Test of the Principle of Tomographic Locality
The principle of tomographic locality states that the operational state of a multipartite system can be fully characterized by the statistics obtained from measurements that are local to the individual subsystems. This property holds in quantum theory and features prominently in axiomatic reconstructions of the theory, where it serves to rule out a wide class of alternatives. For instance, quantum theory with Hilbert spaces defined over the real field (rather than the complex field) is an examp…

$p$-Modulus on radially symmetric trees
Prem Raj Prasain
https://arxiv.org/abs/2506.07377 https://arxiv.org/pdf/2506.07377

$p$-Modulus on radially symmetric trees
In this paper, we establish the theory of $p$-modulus of a family of infinite paths on an infinite-rooted tree and then explore its interpretation and properties. One key result is the formulation of $p$-modulus on the infinite tree as a limit of $p$-modulus on truncated trees, with a formula given in terms of a series. Analogous to the existing theory for finite graphs, the $1$-modulus of a family of descending paths in an infinite tree is related to the minimum cut problem, the $2$-modulus is…

On the exact solutions of a two-dimensional hydrogen atom in a constant magnetic field
Francisco M. Fern\'andez
https://arxiv.org/abs/2506.07765 https:…

On the exact solutions of a two-dimensional hydrogen atom in a constant magnetic field
We analyse the exact solutions to some quantum-mechanical models derived recently by means of a generalization of the Frobenius method. In particular, we carry out an interpretation of the polynomial solutions obtained for the two-dimensional hydrogen atom in a constant magnetic field by comparing the exact solutions with numerical results provided by the Rayleigh-Ritz method.

Changing Bases with Pipe Dream Combinatorics
Anna Weigandt
https://arxiv.org/abs/2506.07306 https://arxiv.org/pdf/2506.07306

Changing Bases with Pipe Dream Combinatorics
Lascoux and Schützenberger introduced Schubert and Grothendieck polynomials to study the cohomology and K-theory of the complete flag variety. We present explicit combinatorial rules for expressing Grothendieck polynomials in the basis of Schubert polynomials, and vice versa, using the bumpless pipe dreams (BPDs) of Lam, Lee, and Shimozono. A key advantage of BPDs is that they are naturally back stable, which allows us to give a combinatorial formula for expanding back stable Grothendieck poly…

High Impedance Granular Aluminum Ring Resonators
Mahya Khorramshahi, Martin Spiecker, Patrick Paluch, Simon Geisert, Nicolas Gosling, Nicolas Zapata, Lucas Brauch, Christian Kuebel, Simone Dehm, Ralph Krupke, Wolfgang Wernsdorfer, Ioan M. Pop, Thomas Reisinger
https://arxiv.org/abs/2506.07761

High Impedance Granular Aluminum Ring Resonators
Superconducting inductors with impedance surpassing the resistance quantum, i.e., superinductors, are important for quantum technologies because they enable the development of protected qubits, enhance coupling to systems with small electric dipole moments, and facilitate the study of phase-slip physics. We demonstrate superinductors with densely packed meandered traces of granular aluminum (grAl) with inductances up to $4\,μ\mathrm{H}$, achieving impedances exceeding $100\,\mathrm{k}Ω$ in th…

Refinement of a conjecture on positive square energy of graphs
Saieed Akbari, Hitesh Kumar, Bojan Mohar, Shivaramakrishna Pragada, Shengtong Zhang
https://arxiv.org/abs/2506.07264

Refinement of a conjecture on positive square energy of graphs
Let $G$ be a simple graph of order $n$ with eigenvalues $λ_1(G)\geq \cdots \geq λ_n(G)$. Define \[s^+(G)=\sum_{λ_i >0} λ_i^2(G), \quad s^-(G)=\sum_{λ_i<0} λ_i^2(G).\] It was conjectured by Elphick, Farber, Goldberg and Wocjan that for every connected graph $G$ of order $n$, $s^+(G) \ge n-1.$ We verify this conjecture for graphs with domination number at most 2. We then strengthen the conjecture as follows: if $G$ is a connected graph of order $n$ and size $m \geq n+1$, then $s^+(G) \geq n…

Detection and manipulation of surface electric field noise of hexagonal boron nitride
Hao-Jie Zhou, Xiao-Wen Shen, Yu Zhou, Lei Dong, Pei-Qin Chen, Xia Chen, Guang-Wei Deng, Gang Xiang, Pei-Jie Guo, Tian-Ke Wang, Hong-Peng Wu, Jun-Feng Wang
https://arxiv.org/abs/2506.07734

Detection and manipulation of surface electric field noise of hexagonal boron nitride
Hexagonal boron nitride (hBN) spin defects off er transformative potential for quantum sensing through atomic-scale proximity to target samples, yet their performance is fundamentally limited by rapid coherence loss. While magnetic noise mechanisms have been extensively studied, another critical infl uence from surface electric fi eld noise remains unexplored in hBN systems. Here,we address this challenge and systematically investigate surface electric fi eld noise in hBN using shallow boron va…

The Erd\H{o}s-Falconer distance problem between arbitrary sets and $k$-coordinatable sets in finite fields
Hunseok Kang, Doowon Koh, Firdavs Rakhmonov
https://arxiv.org/abs/2506.07251

The Erdős-Falconer distance problem between arbitrary sets and $k$-coordinatable sets in finite fields
In this paper, we study the cardinality of the distance set $Δ(A, B)$ determined by two subsets $A$ and $B$ of the $d$-dimensional vector space over a finite field $\mathbb{F}_q$. Assuming that $A$ or $B$ lies in a $k$-coordinate plane up to translations and rotations, we prove that if $|A||B| > 2q^d$, then $|Δ(A, B)| > q/2$, where $|Δ(A, B)|$ denotes the number of distinct distances between elements of $A$ and $B$. In particular, we show that our resu…

Optimal quantum sampling on distributed databases
Longyun Chen, Jingcheng Liu, Penghui Yao
https://arxiv.org/abs/2506.07724 https://a…

Optimal quantum sampling on distributed databases
Quantum sampling, a fundamental subroutine in numerous quantum algorithms, involves encoding a given probability distribution in the amplitudes of a pure state. Given the hefty cost of large-scale quantum storage, we initiate the study of quantum sampling in a distributed setting. Specifically, we assume that the data is distributed among multiple machines, and each machine solely maintains a basic oracle that counts the multiplicity of individual elements. Given a quantum sampling task, which …

Shellings of Tropical Hypersurfaces
George Balla, Michael Joswig, Lena Weis
https://arxiv.org/abs/2506.07241 https://arxiv.org/pdf/25…

Shellings of Tropical Hypersurfaces
The shellability of the boundary complex of an unbounded polyhedron is investigated. To this end, it is necessary to pass to a suitable compactification, e.g., by one point. This observation can be exploited to prove that any tropical hypersurface is shellable. Under the hood there is a subtle interplay between the duality of polyhedral complexes and their shellability. Translated into discrete Morse theory, that interplay entails that the tight span of an arbitrary regular subdivision is colla…

Random Exclusion Codes: Quantum Advantages of Single-Shot Communication
Joonwoo Bae, Kieran Flatt, Teiko Heinosaari, Oskari Kerppo, Karthik Mohan, Andr\'es Mu\~noz-Moller, Ashutosh Rai
https://arxiv.org/abs/2506.07701

Random Exclusion Codes: Quantum Advantages of Single-Shot Communication
Identifying information tasks that offer advantages over their classical counterparts by exploiting quantum resources finds the usefulness of quantum information technologies. In this work, we introduce a two-party communication primitive, Random Exclusion Code (REC), which is a single-shot prepare-and-measure protocol where a sender encodes a random message into a shorter sequence and a receiver attempts to exclude a randomly chosen letter in the original message. We present quantum advantages…

Sperner's colorings of hypergraphs arising from edgewise triangulations
Du\v{s}ko Joji\'c, Ognjen Papaz
https://arxiv.org/abs/2506.07201 https://…

Sperner's colorings of hypergraphs arising from edgewise triangulations
We investigate Sperner's labelings of $H^π_{k,q}$, the hypergraph whose hyperedges are facets of the edgewise triangulation of a $(k-1)$-simplex defined by a permutation $π\in \mathbb{S}_{k-1}$. Mirzakhani and Vondr\' ak showed that the greedy coloring of $H^{\mathrm{Id}}_{k,q}$ produces the maximal number of monochromatic hyperedges. The line graph of $H_{k,q}^π$ is built from the copies of the graph $G_π$ that represents which subsets of consecutive numbers of $[k-1]$ are contiguous in $�…

Limits of Classical correlations and Quantum advantages under (Anti-)Distinguishability constraints in Multipartite Communication
Ankush Pandit, Soumyabrata Hazra, Satyaki Manna, Anubhav Chaturvedi, Debashis Saha
https://arxiv.org/abs/2506.07699

Limits of Classical correlations and Quantum advantages under (Anti-)Distinguishability constraints in Multipartite Communication
We consider communication scenarios with multiple senders and a single receiver. Focusing on communication tasks where the distinguishability or anti-distinguishability of the sender's input is bounded, we show that quantum strategies without any shared entanglement can outperform the classical ones. We introduce a systematic technique for deriving the facet inequalities that delineate the polytope of classical correlations in such scenarios. As a proof of principle, we recover the complete set…

Generalized measurements for Bell tests in different probability spaces
Alfredo Luis
https://arxiv.org/abs/2506.07496 https://arxiv.o…

Generalized measurements for Bell tests in different probability spaces
Bell tests are of profound statistical nature. Besides physical considerations, the proper understanding of their implications should involve detailed statistical analyses. In this regard, recent works have shown that their consequences and interpretations depend on the probability space adopted. Some other recent works have also shown that generalized measurements may allow to further exploit the statistics of Bell-like tests. Following these ideas, in this work we show that one and the same e…

Extending the Affirmative Action Problem: mixing numbers and integrated colorings of graphs
Charles Burnette, Broden Caton, Olivia Coward, Julian Davis, Austin Teter
https://arxiv.org/abs/2506.07192

Extending the Affirmative Action Problem: mixing numbers and integrated colorings of graphs
Consider a graph whose vertices are colored in one of two colors, say black or white. A white vertex is called integrated if it has at least as many black neighbors as white neighbors, and similarly for a black vertex. The coloring as a whole is integrated if every vertex is integrated. A classic exercise in graph theory, known as the Affirmative Action Problem, is to prove that every finite simple graph admits an integrated coloring. The solution can be neatly summarized with the one-liner: "m…

Enhancing Measurement Precision of Non-Degenerate Two-Photon Absorption
Gaurav Shukla, Shahram Panahiyan, Devendra Kumar Mishra, Frank Schlawin
https://arxiv.org/abs/2506.07384

Enhancing Measurement Precision of Non-Degenerate Two-Photon Absorption
Recent theoretical and experimental studies have shown that squeezed states of light can be engineered to enhance the resolution of nonlinear optical measurements. Here, we analyze non-degenerate two-photon absorption signals obtained from transmission measurements using two-mode squeezed light and compare different measurement strategies. In particular, we investigate how correlations between the light modes may be used to improve the achievable precision. We find that intensity correlation me…

Packing tetrahedrons in edge-weighted graphs
Wanting Sun, Shunan Wei, Donglei Yang
https://arxiv.org/abs/2506.07147 https://arxiv.org…

Packing tetrahedrons in edge-weighted graphs
We prove that for all $μ>0, t\in (0,1)$ and sufficiently large $n\in 4\mathbb{N}$, if $G$ is an edge-weighted complete graph on $n$ vertices with a weight function $w: E(G)\rightarrow [0,1]$ and the minimum weighted degree $δ^w(G)\geq (\tfrac{1+3t}{4}+μ)n$, then $G$ contains a $K_4$-factor where each copy of $K_4$ has total weight more than $6t$. This confirms a conjecture of Balogh--Kemkes--Lee--Young for the tetrahedron case.

Experimental memory control in continuous variable optical quantum reservoir computing
Iris Paparelle, Johan Henaff, Jorge Garcia-Beni, Emilie Gillet, Gian Luca Giorgi, Miguel C. Soriano, Roberta Zambrini, Valentina Parigi
https://arxiv.org/abs/2506.07279

Experimental memory control in continuous variable optical quantum reservoir computing
Quantum reservoir computing (QRC) offers a promising framework for online quantum-enhanced machine learning tailored to temporal tasks, yet practical implementations with native memory capabilities remain limited. Here, we demonstrate an optical QRC platform based on deterministically generated multimode squeezed states, exploiting both spectral and temporal multiplexing in a fully continuous-variable (CV) setting, and enabling controlled fading memory. Data is encoded via programmable phase sh…

New Bounds on the Anti-Ramsey Number of Independent Triangles
Hongliang Lu, Xinyue Luo, Xinxin Ma
https://arxiv.org/abs/2506.07115 https://

New Bounds on the Anti-Ramsey Number of Independent Triangles
An edge-colored graph is called \textit{rainbow graph} if all the colors on its edges are distinct. Given a positive integer $n$ and a graph $G$, the \textit{anti-Ramsey number} $ar(n,G)$ is defined to be the minimum number of colors $r$ such that there exists a rainbow copy of $G$ in any exactly $r$-edge-coloring of $K_n$. Wu et al. (Anti-Ramsey numbers for vertex-disjoint triangles, \emph{Discrete. Math.}, \textbf{346} (2022), 113123) determined the anti-Ramsey number $ar(n, kK_3)$ for $n\g…

Quantum correlations in molecular cavity optomechanics
E. Kongkui Berinyuy, D. R. Kenigoule Massembele, P. Djorwe, R. Altuijri, M. R. Eid, A. -H. Abdel-Aty, S. G. Nana Engo
https://arxiv.org/abs/2506.07277

Quantum correlations in molecular cavity optomechanics
In quantum information, quantum correlations--particularly entanglement, EPR steering, and quantum discord--stand as interesting resources, powering breakthroughs from secure communication and quantum teleportation to efficient quantum computation. Here, we unveil a theoretical framework for generating and controlling these vital quantum phenomena within a double-cavity molecular optomechanical (McOM) system. This innovative approach leverages strong interactions between confined optical fields…

Characteristic polynomials of semimatroids and their connections to matroids, hyperplane arrangements and graph colorings
Fu Houshan
https://arxiv.org/abs/2506.07071

Characteristic polynomials of semimatroids and their connections to matroids, hyperplane arrangements and graph colorings
We primarily investigate the properties of characteristic polynomials of semimatroids. In particular, we provide a combinatorial interpretation of their coefficients, generalizing the Whitney's Broken Circuit Theorem. We also prove that the unsigned coefficients of the characteristic polynomial form a unimodal and log-concave sequence, extending the Rota-Heron-Welsh Conjecture to semimatroids. Furthermore, we present convolution identities for the multiplicative characteristic and Tutte polynom…

Engineering and harnessing long-range interactions for atomic quantum simulators
Arg\"uello-Luengo Javier
https://arxiv.org/abs/2506.07250 https://

Engineering and harnessing long-range interactions for atomic quantum simulators
Interactions between quantum particles, such as electrons, are the source of important effects, ranging from superconductivity, to the formation of molecular bonds, or the stability of elementary compounds at high-energies. In this article, we illustrate how advances in the cold-atom community to further engineer such long-range interactions have stimulated the simulation of new regimes of these fundamental many-body problems. The goal is two-fold: first, to provide a comprehensive review of th…

Exponents of 2-multiarrangements of three lines over fields of positive characteristic
Shuhei Tsujie, Ryo Uchiumi
https://arxiv.org/abs/2506.07070 https://…

Exponents of 2-multiarrangements of three lines over fields of positive characteristic
Freeness of multiarrangements is extremely important in the study of freeness of hyperplane arrangements. In particular, the exponents of 2-multiarrangement play an important role in freeness of 3-arrangement. However, it is not easy to compute exponents in general. Wakamiko (2007) determined bases and the exponents for multiarrangements of three lines over a field of characteristic zero. In this paper, we study the exponents of multiarrangements of three lines for the case of positive characte…

Quantum SAT Problems with Finite Sets of Projectors are Complete for a Plethora of Classes
Ricardo Rivera Cardoso, Alex Meiburg, Daniel Nagaj
https://arxiv.org/abs/2506.07244

Quantum SAT Problems with Finite Sets of Projectors are Complete for a Plethora of Classes
Previously, all known variants of the Quantum Satisfiability (QSAT) problem, i.e. deciding whether a $k$-local ($k$-body) Hamiltonian is frustration-free, could be classified as being either in $\mathsf{P}$; or complete for $\mathsf{NP}$, $\mathsf{MA}$, or $\mathsf{QMA_1}$. Here, we demonstrate new qubit variants of this problem that are complete for $\mathsf{BQP_1}$, $\mathsf{coRP}$, $\mathsf{QCMA}$, $\mathsf{PI(coRP,NP)}$, $\mathsf{PI(BQP_1,NP)}$, $\mathsf{PI(BQP_1,MA)}$, $\mathsf{SoPU(coRP,N…

The $k$-Total Bondage Number of a Graph
Jean-Pierre Appel, Gabby Fischberg, Kyle Kelley, Nathan Shank, Eliel Sosis
https://arxiv.org/abs/2506.07000 https:/…

The $k$-Total Bondage Number of a Graph
Let $G=(V,E)$ be a connected, finite undirected graph. A set $S \subseteq V$ is said to be a total dominating set of $G$ if every vertex in $V$ is adjacent to some vertex in $S$. The total domination number, $γ_{t}(G)$, is the minimum cardinality of a total dominating set in $G$. We define the $k$-total bondage of $G$ to be the minimum number of edges to remove from $G$ so that the resulting graph has a total domination number at least $k$ more than $γ_{t}(G)$. We establish general properties…

Certification of High-Dimensional Entanglement Within the Resource Theory of Buscemi Nonlocality
Xian Shi
https://arxiv.org/abs/2506.07195 https://

Certification of High-Dimensional Entanglement Within the Resource Theory of Buscemi Nonlocality
The study on the certification of high degree entanglement, which is quantified in terms of Schmidt number, attracts much attention recently. Drawing inspiration from the work [PRX QUANTUM 2, 020301 (2021)], we first introduce resource theories of distributed measurements and teleportation instruments generated by a bipartite mixed state. Next we quantitatively characterized the relations among the convex resource theories of distributed measurements, teleportation instruments, and bipartite mi…

RSK correspondence for King tableaux with Berele insertion
Masato Kobayashi, Tomoo Matsumura
https://arxiv.org/abs/2506.06951 https://

RSK correspondence for King tableaux with Berele insertion
We establish a bijective RSK correspondence of type C for King tableaux with Berele insertion as a reformulation of Sundaram's correspondence (1986). For its $Q$-symbol, we make use of semistandard oscillating tableaux (SSOT), a new object which Lee (2025) introduced. Further, we show hidden duality of Cauchy identity through RSK correspondences of type A and C. Finally, we prove that the generating function of SSOT is symmetric by constructing a new sort of Bender-Knuth involution.

Experimental Efficient Influence Sampling of Quantum Processes
Hao Zhan, Zongbo Bao, Zekun Ye, Qianyi Wang, Minghao Mi, Penghui Yao, Lijian Zhang
https://arxiv.org/abs/2506.07103 …

Experimental Efficient Influence Sampling of Quantum Processes
Characterizing quantum processes paves the way for unlocking the full potential of quantum systems. However, quantum process tomography demands intensive resources and becomes infeasible on large-scale quantum devices. Other methods have explored advanced strategies, yet challenges in experimental feasibility and scalability persist. To address this issues, we introduce influence sampling that efficiently extracts the key \textit{influence} of a quantum process on qubit subsets using at most th…

A characterization of all graphs cospectral to the double star $P_2(1,n)$
Emily Barranca, Michael D. Barrus
https://arxiv.org/abs/2506.06934 https://

A characterization of all graphs cospectral to the double star $P_2(1,n)$
We examine the adjacency spectrum of trees with diameter three, also referred to as double stars. Using $P_2(a,b)$ to denote a double star with $ a$ and $b$ leaves at its respective endpoints, we discuss graphs which are cospectral to double stars for various parameters $a$ and $b$. In particular, we give constructions for graphs cospectral to $P_2(1,2k)$ for integers $k$. Lastly, we show that the double star $P_2(1,n)$ is determined by its spectrum when $n$ is odd. That is, if a graph $G$ cosp…

Variational quantum algorithms with invariant probabilistic error cancellation on noisy quantum processors
Yulin Chi, Hongyi Shi, Wen Zheng, Haoyang Cai, Yu Zhang, Xinsheng Tan, Shaoxiong Li, Jianwei Wang, Jiangyu Cui, Man-Hong Yung, Yang Yu
https://arxiv.org/abs/2506.07039

Variational quantum algorithms with invariant probabilistic error cancellation on noisy quantum processors
In the noisy intermediate-scale quantum era, emerging classical-quantum hybrid optimization algorithms, such as variational quantum algorithms (VQAs), can leverage the unique characteristics of quantum devices to accelerate computations tailored to specific problems with shallow circuits. However, these algorithms encounter biases and iteration difficulties due to significant noise in quantum processors. These difficulties can only be partially addressed without error correction by optimizing h…

Inline Quantum Measurements with SNSPDs Coupled to Photonic Bound States
Filippo Martinelli, Anton N. Vetlugin, Shuyu Dong, Darren M. Z. Koh, Mariia Sidorova, Christian Kurtsiefer, Cesare Soci
https://arxiv.org/abs/2506.07029

Inline Quantum Measurements with SNSPDs Coupled to Photonic Bound States
Superconducting nanowire single-photon detectors (SNSPDs) are enabling components of quantum photonic integrated circuits for their ease of fabrication and unsurpassed performance. While several approaches for SNSPDs integration are being pursued, scalability and interfacing with electrical readout circuits remain challenging. Here we introduce the concept of inline detection with SNSPDs, facilitating advanced quantum measurements within an ultra-compact device footprint. To establish this appr…

Bivariate asymptotics via random walks: application to large genus maps
Andrew Elvey Price, Wenjie Fang, Baptiste Louf, Michael Wallner
https://arxiv.org/abs/2506.06924

Bivariate asymptotics via random walks: application to large genus maps
We obtain bivariate asymptotics for the number of (unicellular) combinatorial maps (a model of discrete surfaces) as both the size and the genus grow. This work is related to two research topics that have been very active recently: multivariate asymptotics and large genus geometry. Our method consists in studying a linear recurrence for these numbers, and in fact it can be applied to many other linear recurrences. We discuss briefly the generality of our method and future research directions.

Unveiling the role of vector potential in the Aharonov-Bohm effect
Masashi Wakamatsu
https://arxiv.org/abs/2506.07018 https://arxiv.o…

Unveiling the role of vector potential in the Aharonov-Bohm effect
The most popular interpretation of the Aharonov-Bohm (AB) effect is that the electromagnetic potential locally affects the complex phase of a charged particle's wave function in the magnetic field free region. However, since the vector potential is a gauge-variant quantity, not a few researchers suspect that it is just a convenient tool for calculating the force field. This motivates them to explain the AB effect without using the vector potential, which inevitably leads to some sort of non-loc…

Quantum transduction via generalized continuous-variable teleportation
Quntao Zhuang
https://arxiv.org/abs/2506.06899 https://arxiv.o…

Quantum transduction via generalized continuous-variable teleportation
Quantum transduction converts quantum states between different frequencies. Similarly, quantum teleportation transfers quantum states between different systems. While often appreciated for quantum communication between distant locations, teleportation can also operate between different frequencies. In terms of bosonic modes, quantum teleportation relies on two-mode squeezing -- squeezed on the balanced Einstein-Podolsky-Rosen (EPR) quadratures -- for entanglement and a balanced beamsplitter plu…

Simulating discrete-time quantum walk with urn model
Surajit Saha
https://arxiv.org/abs/2506.06896 https://arxiv.org/pdf/2506.06896…

Simulating discrete-time quantum walk with urn model
Urn models have long been used to study stochastic processes, probability distributions, and reinforcement dynamics. Meanwhile, discrete time quantum walks (DTQW) serve as fundamental components in quantum computation and quantum information theory. This work explores a novel connection between an urn model and discrete-time quantum walks, focusing on how urn-based stochastic processes can provide insights into quantum state evolution and algorithmic behavior. Importantly, our model operates en…

Classical Simulation of an All-Optical Toffoli Gate using Soliton Scattering through Asymmetric Potential Wells
Melih \"Ozkurt, \"Ozg\"ur E. M\"ustecapl{\i}o\u{g}lu
https://arxiv.org/abs/2506.06883

Classical Simulation of an All-Optical Toffoli Gate using Soliton Scattering through Asymmetric Potential Wells
We propose and numerically simulate an all-optical Toffoli (controlled-controlled-NOT) gate based on the scattering of spatial solitons by asymmetric Pöschl-Teller potential wells. In our scheme, the logical state of the target bit is encoded in the relative spatial ordering of two distinguishable soliton components, while the control bits are represented by the presence or absence of external potential wells. We solve the nonlinear Schrödinger equations governing the soliton dynamics and sys…

Memory cost of quantum contextuality with Pauli observables
Stefan Trandafir, Colm Kelleher, Ad\'an Cabello
https://arxiv.org/abs/2506.06869 https://…

Memory cost of quantum contextuality with Pauli observables
Classically simulating the quantum contextual correlations produced by sequences of ideal measurements of compatible observables requires the measured system to have an internal memory. Computing the minimum amount of memory needed is, in general, challenging. Here, building upon the work of Kleinmann et al. [New J. Phys. 13, 113011 (2011)], we prove that the memory cost for simulating the contextuality produced by the $10$ three-qubit observables of Mermin's pentagram is only $\log_2(5) \appro…