Expertini Research Research

Browse Research Papers

2,623+ open-access research outputs.

โœ• Clear
๐Ÿ” jochen burghardt
Showing 2623 results for "jochen burghardt"
Physics Preprint PDF DOI

How Quantum Contextuality disappears in the Classical Limit

Arthur C. R. Dutra, Roberto D. Baldijao, Marcelo Terra Cunha ยท 2026

The emergence of classicality is fundamentally driven by the interaction between a quantum system and its environment. Foundational open-system approaches, notably the Caldeira-Leggett model, successfโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Contextuality from the Projector Overlap Matrix

Ali Can Gunhan, Semahi Serhat Aksoy, Zafer Gedik ยท 2026

We place several known indicators of Kochen--Specker contextuality -- the KCBS correlator $\chi$, the contextual fraction $\CF$, the Shannon-entropic $n$-cycle inequality of Chaves and Fritz, and the โ€ฆ

Read Paper โ†’
Computer Science Preprint PDF DOI

Green-Red Watermarking for Recommender Systems

Lei Zhou, Min Gao, Zongwei Wang, Yibing Bai, Wentao Li ยท 2026

The widespread open-sourcing of advanced recommendation algorithms and the rising threat of model extraction attacks have made safeguarding the intellectual property of recommender systems an imperatiโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Boxing inequalities for relative fractional perimeter and fractional Poincar\'e-type inequalities on John domains with the BBM factor

Manzi Huang, Panu Lahti, Jiang Li, Zhuang Wang ยท 2026

For $0<\delta,\tau<1$ and $1\le s\le \frac{n}{n-\delta}$, we prove that for a given $s$-John domain $\Omega\subset \mathbb{R}^n$, the following Boxing inequality holds for every Lebesgue measurable โ€ฆ

Read Paper โ†’
Computer Science Preprint PDF DOI

SAT + NAUTY: Orderly Generation of Small Kochen-Specker Sets Containing the Smallest State-independent Contextuality Set

Zhengyu Li, Curtis Bright, Stefan Trandafir, Adan Cabello, Vijay Ganesh ยท 2026

We present a search for small Kochen-Specker (KS) sets in dimension 3, specifically targeting extensions of the 13-ray Yu-Oh set, which has been proven to be the minimal witness to state-independent cโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Quantum Correlations in Classical Systems

Ghenadie N. Mardari ยท 2026

A classical fluid splitter produces the same patterns of energy redistribution as a Stern-Gerlach quantum device, with rotationally invariant coefficients of correlation between molecular paths. Alterโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Multifractal Analysis, Liv\v{s}ic Rigidity, and Fluctuation Theorems for Axiom A Diffeomorphisms: The Pesin Formula and the Gallavotti-Cohen Symmetry

Abdoulaye Thiam ยท 2026

This Part develops structural consequences of the thermodynamic formalism for Axiom A diffeomorphisms. The Pesin Entropy Formula equates the metric entropy of the SRB measure to the sum of positive Lyโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Warring Contextualities -- Provably Classical vs Provably Nonclassical

Enrico Bozzetto, Jonte R. Hance ยท 2026

In the literature, there are two differing definitions of contextuality: Kochen and Specker's, and Spekkens' (or ``generalised''). However, researchers using one of these definitions rarely consider tโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Perspectivist Account of Truth-Theoretic Semantics in Quantum Mechanics

Vassilios Karakostas ยท 2026

According to various no-go results in the foundations of quantum mechanics, for any system associated to a Hilbert space of dimension higher than two, it is not possible to assign definite truth valueโ€ฆ

Read Paper โ†’
AI & Data Science Preprint PDF DOI

AsymLoc: Towards Asymmetric Feature Matching for Efficient Visual Localization

Mohammad Omama, Gabriele Berton, Eric Foxlin, Yelin Kim ยท 2026

Precise and real-time visual localization is critical for applications like AR/VR and robotics, especially on resource-constrained edge devices such as smart glasses, where battery life and heat dissiโ€ฆ

Read Paper โ†’
AI & Data Science Preprint PDF DOI

Beyond the Individual: Virtualizing Multi-Disciplinary Reasoning for Clinical Intake via Collaborative Agents

Huangwei Chen, Wu Li, Junhao Jia, Yining Chen, Xiaotao Pang, YaLong Chen, Gonghui Li, Haishuai Wang, Jiajun Bu, Lei Wu ยท 2026

The initial outpatient consultation is critical for clinical decision-making, yet it is often conducted by a single physician under time pressure, making it prone to cognitive biases and incomplete evโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

A characterization of Cohen-Macaulay rings in terms of levels of perfect complexes

Naoya Hiramatsu, Yuki Mifune, Ryo Takahashi ยท 2026

Let $R$ be a commutative noetherian ring, and let $C$ be a semidualizing $R$-module. In this paper, we study levels of bounded complexes of finitely generated $R$-modules with respect to the full subcโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Causality, the Kovtun-Son-Starinets bound, and a novel sum rule for spectral densities

G. Yu. Prokhorov, O. V. Teryaev ยท 2026

We directly show that the local ratio of the shear viscosity to the entropy density for Unruh radiation at a finite distance from the horizon is universal and satisfies the relation $ \eta/s = 1/(4\piโ€ฆ

Read Paper โ†’
Computer Science Preprint PDF DOI

HistMSO: A Logic for Reasoning about Consistency Models with MONA

Isabelle Coget, Etienne Lozes ยท 2026

Reasoning about consistency models for replicated data systems is a challenging task that requires a deep understanding of both the consistency models themselves and a large part of human inputs in meโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

A time grating approach to ultrahigh-Q guided mode resonance

Youxiu Yu, Xiaofeng Xu, Yang Long, Gui-Geng Liu, Dongliang Gao, Xiao Lin, Hao Hu ยท 2026

Guided mode resonance (GMR), the resonant coupling of free-space light into leaky waveguide modes, is traditionally achieved with periodic patterned structures. However, this approach makes its key prโ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Goos-H\"anchen Shift in $\mathcal{PT}$-Symmetric and Passive Cavity Optomechanical Systems

Shah Fahad, Gao Xianlong ยท 2026

We theoretically investigate the control of the Goos-H\"anchen shift (GHS) of a reflected weak probe field in both parity-time ($\mathcal{PT}$)-symmetric and conventional optomechanical systems. The pโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Cohen-Macaulay and Gorenstein Properties of Bi-Amalgamated Algebras with Applications to Algebroid Curves

Efe Gurel, Abuzer Gunduz ยท 2026

Let $A \bowtie^{f,g} (J,J')$ be the bi--amalgamation of a commutative ring $A$ with $(B,C)$ along the ideals $(J,J')$ with respect to the ring homomorphisms $(f,g)$. In this article, we study the basiโ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

Recollements of Cohen-Macaulay Auslander algebras for gentle algebras

Jiacheng Xu, Yu-Zhe Liu, Xin Ma, Guiqi Shi ยท 2026

We construct two recollements of module categories for the Cohen--Macaulay Auslander algebra $A^{\mathrm{CMA}}$ of a gentle algebra $A$. In this paper, we establish three equivalent characterizations โ€ฆ

Read Paper โ†’
Physics Preprint PDF DOI

Conclusive Identification Via Noisy Classical Channel: Superactivation and Quantum Advantage

Anushko Chattopadhyay, Ambuj, Rakesh Das, Smritikana Patra, Chitrak Roychowdhury, Manik Banik, Amit Mukherjee ยท 2026

We introduce conclusive identification task for classical channels: a receiver identifies transmitted inputs without error when possible, and responds inconclusively when outputs are ambiguous. For a โ€ฆ

Read Paper โ†’
Mathematics Preprint PDF DOI

AKE principles for deeply ramified fields

Franziska Jahnke, Jonas van der Schaaf ยท 2026

We study the model theory of deeply ramified fields of positive characteristic. Generalizing the perfect case treated in work by Jahnke and Kartas on the model theory of perfectoid fields, we obtain Aโ€ฆ

Read Paper โ†’
Page 1 of 132 Next โ†’