⚛️ Category

quant-ph

6648 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

Hadamard regularization of open quantum systems coupled to unstructured environments in the Schwinger-Keldysh formalism

This paper proposes a Hadamard regularization-based separation-of-scales ansatz within the Schwinger-Keldysh formalism to develop a computationally efficient time-stepping algorithm for the Kadanoff-Baym equations, enabling the simulation of damped quantum harmonic oscillators in unstructured environments while capturing non-Markovian and renormalization effects without prohibitive cubic scaling.

Jakob Dolgner2026-03-17
⚛️ quantum physics

An Ideal Random Number Generator Based on Quantum Fluctuations and Rotating Wheel for Secure Image Encryption

This paper proposes a hybrid random number generator that combines quantum fluctuations from a kicked rotor model with a dynamically rotating wheel to produce high-entropy sequences for secure image encryption, demonstrating robust cryptographic performance suitable for consumer applications like mobile healthcare and biometric authentication.

Subhadip Rana, Sanku Paul, Mrinal Kanti Mandal2026-03-17
⚛️ high-energy theory

State-dependent geometries from magic-enriched quantum codes

This paper proposes that incorporating gravitational backreaction into holographic models requires approximate quantum error correction rather than exact codes, introducing a new entropy decomposition where "proto-area" emerges from tripartite non-local magic in the encoding map, thereby establishing a state-dependent link between bulk matter entropy and boundary geometry.

ChunJun Cao, Gong Cheng, Krishnanand Karthikeyan, Cathy Li, John Preskill2026-03-17
⚛️ quantum physics

Qubit syndrome measurements with a high fidelity Rb-Cs Rydberg gate

This paper demonstrates a high-fidelity inter-species Rb-Cs Rydberg entangling gate that enables in-place quantum non-demolition qubit measurements, achieving error syndrome fidelities of 0.933 and 0.865 for two- and three-qubit plaquettes, respectively, which are critical for quantum error correction.

J. Miles, M. T. Lichtman, A. M. Scott, J. Scott, S. A. Norrell, M. J. Bedalov, D. A. Belknap, D. C. Cole, S. Y. Eubanks (…)2026-03-17
⚛️ quantum physics

Active Sampling Sample-based Quantum Diagonalization from Finite-Shot Measurements

This paper introduces Active Sampling Sample-based Quantum Diagonalization (AS-SQD), an algorithm that leverages a perturbation-theoretic acquisition function to iteratively select energetically relevant basis states from finite-shot measurements, thereby achieving robust and accurate ground-state energy estimates on near-term quantum devices while outperforming standard SQD and random expansion methods.

Rinka Miura2026-03-17
🔬 materials science

Co2SeO3Cl2: Studies of Emerging Magnetoelectric Coupling in a Polar, Buckled Honeycomb Material

This study demonstrates that the polar, buckled honeycomb magnet Co2SeO3Cl2 exhibits strong magnetic anisotropy, multiple magnetic transitions with persistent spin fluctuations, and magnetoelectric coupling anomalies, establishing it as a promising unconventional platform for integrating structural polarity with complex magnetic interactions.

Faith O. Adeyemi, Xudong Huai, Mohamed Kandil, Pradip Karki, Wencan Jin, Thao T. Tran2026-03-17
⚛️ quantum physics

The Quest for Quantum Advantage in Combinatorial Optimization: End-to-end Benchmarking of Quantum Solvers vs. Multi-core Classical Solvers

This paper presents an end-to-end benchmark demonstrating that a hybrid sequential quantum solver executed on IBM Heron processors can achieve sub-second runtimes and solution quality competitive with strong multi-core classical solvers, including those utilizing 128 vCPUs or 8 NVIDIA A100 GPUs, for higher-order unconstrained binary optimization problems.

Pranav Chandarana, Alejandro Gomez Cadavid, Enrique Solano, Thorsten Koch, Stefan Woerner, Narendra N. Hegade2026-03-17