quant-ph papers | Gist.Science

Quantum physics explores the strange and often counterintuitive rules that govern the universe at its smallest scales. This field investigates how particles like electrons and photons behave in ways that defy our everyday intuition, forming the backbone of modern technologies from lasers to future quantum computers. While the mathematics can be daunting, the core ideas promise to revolutionize how we understand reality and process information.

At Gist.Science, we make these complex discoveries accessible to everyone. We systematically process every new preprint published in the Quant-Ph category on arXiv, transforming dense academic papers into clear, plain-language explanations alongside detailed technical summaries. Whether you are a seasoned researcher or a curious reader, our goal is to bridge the gap between cutting-edge theory and human understanding.

Below are the latest papers in quantum physics, distilled to help you grasp the newest breakthroughs without getting lost in the jargon.

🔬 condensed matter

Recursion method for out-of-equilibrium many-body dynamics: strengths and limitations

This article shows that although the recursion method is a powerful tool for calculating dynamic correlation functions via universal Lanczos coefficients, its application to quantum quench dynamics is fundamentally limited by the non-universal, state-dependent character of the required quench coefficients, which prevents reliable extrapolation and restricts the accessible time horizon for accurate results.

Ilya Shirokov, Viacheslav Khrushchev, Filipp Uskov, Ivan Dudinets, Igor Ermakov, Oleg Lychkovskiy2026-04-29

🔬 optics

Toward an Experimental Device-Independent Verification of Indefinite Causal Order

This paper presents the first experimental implementation of a device-independent protocol to verify indefinite causal order by violating a Bell-like inequality with a value of $1.8328 \pm 0.0045$ , which exceeds the definite causal order bound by 18 standard deviations, despite the presence of experimental loopholes.

Carla M. D. Richter, Michael Antesberger, Huan Cao, Philip Walther, Lee A. Rozema2026-04-29

🔬 condensed matter

Local classical correlations between physical electrons in Hubbard systems

This work demonstrates that local electron correlations in Hubbard-like models are fully classical, characterized by the mutual information of local natural spin-orbitals, and illustrates how these local classical correlations are significantly influenced by nonlocal processes, thereby linking them to nonlocal entanglement.

Gabriele Bellomia, Adriano Amaricci, Massimo Capone2026-04-29

🔬 mesoscale physics

High-Efficiency Tunable Microwave Photon Detector Based on a Semiconductor Double Quantum Dot Coupled to a Superconducting High-Impedance Cavity

This work demonstrates a highly efficient, tunable microwave photon detector that achieves nearly 70% efficiency by employing a semiconductor double quantum dot coupled to a high-impedance superconducting cavity and enables deterministic single-photon-to-charge conversion over a frequency range of 3–5.2 GHz.

Fabian Oppliger, Wonjin Jang, Aldo Tarascio, Franco De Palma, Christian Reichl, Werner Wegscheider, Ville F. Maisi, Domi (…)2026-04-29

⚛️ quantum physics

Universal Bound States in Long-range Spin Chains with an Impurity

This article theoretically predicts and numerically validates the emergence of universal three-magnon bound states, including Efimov and half-super-Efimov effects, in quantum spin chains with long-range interactions and a single impurity when the decay exponent of the interaction $\alpha$ falls within certain ranges.

Ning Sun, Lei Feng, Pengfei Zhang2026-04-29

🔢 mathematics

Resonating Valence Bond Ground States on Corner-sharing Simplices

This article generalizes previous findings on resonating valence bond ground states by analytically solving the simplest hole-doped Hubbard model on a quasi-one-dimensional tetrahedral chain and demonstrating the existence of exponentially degenerate partial RVB or dimer-monomer ground states in which each tetrahedron hosts a spin-1/2 monomer and a spin-0 dimer.

Zhao Zhang, Cecilie Glittum2026-04-29

⚛️ high-energy theory

Measurement-Induced Entanglement in Conformal Field Theory

This paper demonstrates that measurement-induced entanglement in Tomonaga-Luttinger liquids is a universal, conformally invariant phenomenon determined by the CFT's operator content, which can be exactly computed via a replica trick and fundamentally differs from entanglement induced by forcing specific measurement outcomes.

Kabir Khanna, Romain Vasseur2026-04-29

🔬 condensed matter

Unified theory of classical and quantum ergotropy

This article establishes a unified theory of ergotropy by deriving a general analytical expression for classical systems that emerges as the classical limit of the quantum formula, thereby bridging the gap between atomic and galactic scales and enabling the resolution of long-standing problems in both regimes.

Michele Campisi2026-04-29

🔢 mathematics

Quantum Physics using Weighted Model Counting

This paper introduces a theoretically grounded, Python-implemented framework that translates Dirac notation into weighted model counting (WMC) instances, enabling the systematic application of automated reasoning heuristics to calculate partition functions for diverse quantum and classical physical models.

Dirck van den Ende, Joon Hyung Lee, Alfons Laarman, Henning Basold2026-04-29

⚛️ lattice

Modulated symmetries from generalized Lieb-Schultz-Mattis anomalies

This article establishes a unified, non-perturbative framework demonstrating that spatially modulated symmetries and their associated dipole algebras naturally emerge from the gauging of ordinary symmetries in the presence of generalized Lieb-Schultz-Mattis anomalies, and provides explicit lattice models as well as field-theoretic descriptions across arbitrary spatial dimensions.

Hiromi Ebisu, Bo Han, Weiguang Cao2026-04-29

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