⚛️ Category

quant-ph

9721 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

Absence of measurement- and unraveling-induced entanglement transitions in continuously monitored one-dimensional free fermions

Using replica Keldysh field theory and numerical simulations, this paper demonstrates that continuously monitored one-dimensional free fermions do not exhibit genuine measurement- or unraveling-induced entanglement phase transitions, as their steady-state entanglement ultimately obeys an area law beyond exponentially large length scales despite displaying critical-like behavior at intermediate scales.

Clemens Niederegger, Tatiana Vovk, Elias Starchl, Lukas M. Sieberer2026-05-12
⚛️ quantum physics

Degeneracy beyond the parity-symmetry protection in one-dimensional spinless models: The parity-violating Kerr parametric oscillator

This paper demonstrates that a one-dimensional Kerr parametric oscillator with parity-violating drives can still exhibit doubly-degenerate energy levels and protected qubit potential through an alternative antiunitary symmetry, challenging the conventional reliance on parity symmetry for such degeneracy.

Jamil Khalouf-Rivera, Miguel Carvajal, Francisco Pérez-Bernal2026-05-12
⚛️ high-energy theory

Automorphism in Gauge Theories: Higher Symmetries and Transversal Non-Clifford Logical Gates

This paper investigates how automorphisms of gauge groups induce global symmetries that can manifest as higher-group or non-invertible symmetries in gauge theories with topological actions, leveraging these findings to construct new transversal non-Clifford logical gates in topological quantum codes that extend the generalized Bravyi-König bound to ZN\mathbb{Z}_N qudit systems.

Po-Shen Hsin, Ryohei Kobayashi2026-05-12
⚛️ quantum physics

Parallel Multi-Circuit Quantum Feature Fusion in Hybrid Quantum-Classical Convolutional Neural Networks for Breast Tumor Classification

This paper presents a hybrid Quantum-Classical Convolutional Neural Network that integrates amplitude and angle-encoding variational quantum circuits to fuse quantum and classical features, demonstrating statistically significant improvements in breast tumor classification accuracy on the BreastMNIST dataset compared to a parameter-matched classical baseline.

Ece Yurtseven2026-05-12
⚛️ quantum physics

Exact and Efficient Stabilizer Simulation of Thermal-Relaxation Noise for Quantum Error Correction

This paper presents an exact and efficient stabilizer-compatible simulation model for thermal-relaxation noise that overcomes the limitations of the Pauli-twirling approximation, enabling accurate training of decoders and performance analysis of quantum error-correcting codes under realistic physical conditions.

Sean R. Garner, Nathan M. Myers, Meng Wang, Samuel Stein, Chenxu Liu, Ang Li2026-05-12
⚛️ quantum physics

Efficient simulation of low-entanglement bosonic Gaussian states in polynomial time

This paper introduces an efficient algorithm that converts pure bosonic Gaussian states into matrix product states using a Gaussian singular value decomposition and projected-creation-operator mapping, thereby enabling polynomial-time classical simulation of low-entanglement bosonic systems while bypassing the computational bottleneck of hafnian calculations.

Tong Liu, Hui-Ke Jin, Tao Xiang, Hong-Hao Tu2026-05-12
⚛️ quantum physics

Real-Time Polarization Control for Satellite QKD with Liquid-Crystal Beacon Stabilization

This paper presents a compact, real-time polarization compensation system for satellite quantum key distribution that utilizes liquid-crystal variable retarders and a co-propagating classical beacon to effectively mitigate atmospheric and motion-induced distortions, thereby maintaining entanglement fidelity with only a moderate increase in quantum-bit error rate.

Ondrej Klicnik, Alessandro Zannotti, Yannick Folwill, Oliver de Vries, Petr Munster, Tomas Horvath2026-05-12
⚛️ quantum physics

Spin-1 quantum annealing with anisotropy-controlled intermediate-state pathways

This paper demonstrates that quantum annealing on spin-1 systems with tunable single-ion anisotropy outperforms traditional spin-1/2 approaches by utilizing intermediate spin states to traverse energy landscapes via smaller, incremental steps, thereby achieving higher ground-state fidelity and offering intrinsic advantages for optimization problems involving ternary variables.

M. Haider Akbar, Özgür E. Müstecaplıoğlu2026-05-12