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.

⚛️ quantum physics

Insights into decohered critical states using an exact solution to matchgate circuits with Pauli noise

This paper introduces an exact analytic technique for matchgate circuits with Pauli noise to demonstrate that decoherence in critical ground states, such as the 1D transverse field Ising model, generates a non-equilibrium state characterized by a thermal distribution of quasi-particles and a noise-induced length scale, which can be experimentally detected using a single probe qubit without post-selection.

Andrew Pocklington, Aashish A. Clerk2026-04-22

⚛️ phenomenology

Vortex structures in electron-positron pair production by two-colored fields

This paper investigates spin-resolved vortex structures in electron-positron pair production driven by time-delayed two-colored fields, revealing a dynamic transition from interference patterns to quantized vortex lattices governed by spin-orbit selection rules and total angular momentum conservation.

Adiljan Sawut, Ying-Jun Li, Hong-Hao Fan, Bai-Song Xie2026-04-22

🔢 mathematics

Asymptotic Metrological Scaling and Concentration in Chaotic Floquet Dynamics

This paper investigates quantum sensing protocols utilizing Haar random unitary gates within Floquet chaotic dynamics, demonstrating that while asymptotic precision scales linearly (shot-noise limit) in large Hilbert spaces, non-asymptotic regimes offer quantum advantages, and it further establishes that Floquet random quantum circuits effectively mimic global unitary operators in the limit of large local dimensions.

Astrid J. M. Bergman, Yunxiang Liao, Jing Yang2026-04-22

⚛️ quantum physics

Towards Automated Selection of Quantum Encoding Circuits via Meta-Learning

This paper proposes a meta-learning-based automated recommender system that predicts the optimal quantum encoding circuit for a given dataset using classical complexity metrics, achieving up to 85.7% Top-3 accuracy without requiring costly quantum evaluations.

Dao Duy Tung, Nguyen Quoc Chuong, Vu Tuan Hai, Le Bin Ho, Lan Nguyen Tran2026-04-22

⚛️ quantum physics

Wave--particle transition and quantum Zeno effect in which-way experiments with a superconducting quantum processor

This study utilizes a superconducting quantum processor to experimentally demonstrate the wave-particle transition and quantum Zeno effect in Mach-Zehnder interferometry, quantitatively characterizing how which-way measurements break coherence, induce information leakage, and establish complementarity relations between entropy and fringe visibility.

Shiyu Wang, Zhiguang Yan, Clemens Gneiting, Rui Li, Franco Nori, Yasunobu Nakamura2026-04-22

⚛️ quantum physics

Arc search in graphs via Szegedy walks

This paper investigates quantum arc search in graphs using Szegedy walks, establishing that success probability is independent of the marked arc in arc-transitive graphs while demonstrating that the method is ineffective for path and cycle graphs but performs well for complete bipartite graphs.

Sho Kubota, Kiyoto Yoshino2026-04-22

⚛️ quantum physics

Quantum Homomorphic Encryption: Towards Practical and Private Computation on Untrusted Quantum Hardware

This paper proposes a universal, information-theoretically secure Quantum Homomorphic Encryption framework (QOTPH) based on the Quantum One-Time Pad that enables non-interactive, private computation on encrypted quantum states across Clifford+T and variational circuits, with its correctness and key secrecy experimentally validated on both simulated and real quantum hardware.

Jon Hernández-Bueno, Oscar Lage, Marivi Higuero, Jasone Astorga2026-04-22

🔬 mesoscale physics

Quantum transport in gapped graphene under strain and laser--electrostatic barriers

This study employs a transfer-matrix approach to demonstrate how uniaxial zigzag strain, energy gaps, and laser-modulated electrostatic barriers collectively govern electron transmission in gapped graphene, revealing strain-induced Fano oscillations and tunable transport properties that could advance optoelectronic device applications.

Hasna Chnafa, Clarence Cortes, David Laroze, Ahmed Jellal2026-04-22

⚛️ quantum physics

Single-shot quantum neural networks with amplitude estimation

This paper proposes a single-shot quantum neural network framework that integrates quantum amplitude estimation into the readout stage to overcome the fundamental sampling bottleneck of conventional methods, achieving an $\mathcal{O}(1/N)$ error rate with a single circuit execution instead of requiring repeated sampling.

Jaemin Seo2026-04-22

🔬 mesoscale physics

Photonic Chirality for Braiding and Readout of Non-Abelian Anyons

This paper proposes a cavity-based scheme that utilizes photonic chirality to control the braiding and readout of non-Abelian anyons in fractional quantum Hall systems by creating a rotating pinning landscape that maps braid operations onto measurable cavity intermode coherence, offering a robust alternative to fragile electronic interference methods.

Netzer Moriya2026-04-22

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