⚛️ Category

quant-ph

11028 papers

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.

⚛️ quantum physics

Commutator Geometry and Information Preservation in the Quantum Switch

This paper demonstrates that while two commuting quantum channels yield identical fixed-order composites, their quantum superposition (the quantum switch) can enhance or diminish information preservation depending on the input state, with exact commutator identities revealing that the switch can stabilize encoded information and maximize distinguishability for specific entangled states despite altering noise estimation capabilities.

Xu Chen, Xue Ma2026-09-21
🔬 mesoscale physics

Floquet-spin-orbit compensation and flat- and quadratic-band contact in the α\alpha-T3T_3 lattice

This paper investigates Floquet-spin-orbit compensation in the α\alpha-T3T_3 lattice, revealing how tuning the interplay between circularly polarized light and intrinsic spin-orbit coupling induces distinct band-degeneracy conditions that enable the inverse determination of the lattice parameter α\alpha through intrinsic transverse thermoelectric responses.

Imtiaz Khan, Muzamil Shah, Reza Asgari, Gao Xianlong2026-09-21
⚛️ quantum physics

Pair density Shannon information measures and their NN-dependent behaviour in diatomic molecular systems

This study calculates pair density Shannon entropies and mutual information for various diatomic molecules using Hartree-Fock wave functions, revealing that momentum space exhibits lower statistical correlation than position space and that specific models successfully capture universal NN-dependent behaviors in these entropy sums across different chemical series.

Saul J. C. Salazar, J. Antonio Zarate, J. M. Solano-Altamirano, Humberto G. Laguna, Julio M. Hernandez-Perez, Robin P. S (…)2026-09-21
⚛️ nuclear theory

Sine-Gordon Model with Bosonic Tensor Networks: Continuum Matching and Soliton Scattering

This paper demonstrates that bosonic tensor networks quantitatively connect the lattice sine-Gordon model to its continuum theory, accurately reproducing exact soliton masses, breather spectra, and scattering dynamics without adjustable parameters, thereby establishing a robust framework for studying non-integrable extensions and gauge theories.

Florian Hechenberger, Tommaso Rainaldi, Felix Ringer2026-09-21
🔬 atomic physics

Arrival Time\textemdash Classical Parameter or Quantum Operator?

This paper extends the debate over whether time is a classical parameter or a quantum operator to multi-particle entangled systems, proposing a feasible two-particle experiment that reveals regimes where these distinct theoretical approaches yield inequivalent predictions, thereby offering a pathway to experimentally distinguish between competing interpretations of time in quantum mechanics.

MohammadJavad Kazemi, MohammadHossein Barati, Ghadir Jafari, S. Shajidul Haque, Saurya Das2026-09-21
⚛️ quantum physics

Hybrid quantum-classical attention for histopathology-based molecular profiling in data-limited cancers

This paper presents a hybrid quantum-classical strategy that replaces standard softmax attention with a quantum-derived doubly stochastic matrix in histopathology transformers, demonstrating selective improvements in gene expression prediction for data-limited cancers and biologically relevant targets while validating the underlying mechanism on IBM quantum processors.

Kahn Rhrissorrakrai, Aritra Bose, Aldo Guzman-Saenz, Filippo Utro, Laxmi Pardia2026-09-21
🔬 atomic physics

Persistent Quantum-Enhanced Frequency Sensing with T^{-3/2} Scaling

This paper demonstrates a persistent quantum-enhanced frequency sensing protocol using Fock states within a quantum heterodyne (Qdyne) framework on a trapped ion, achieving a record-breaking T−3/2T^{-3/2} precision scaling that extends seven orders of magnitude beyond the dephasing limit and recovers quantum advantage for long-term measurements.

Clayton Z. C. Ho, Hao Wu, Grant D. Mitts, Joshua A. Rabinowitz, Eric R. Hudson2026-09-21