⚛️ Category

quant-ph

6293 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

Schroedinger's Equation at 100: The Wave Picture That Helped and Possibly Hurt

This essay argues that while Schrödinger's wave equation provided a powerful visual framework for quantum mechanics, its historical success fostered a misleading tendency to treat the wave function as a literal physical entity rather than a mathematical representation, a tension that persists today and underscores the need to use such conceptual pictures boldly while avoiding their ontological reification.

Caslav Brukner2026-04-30
⚛️ quantum physics

Genuine tripartite entanglement in Bhabha scattering with an entangled spectator particle

This paper demonstrates that tree-level Bhabha scattering between an incident electron and an entangled positron spectator can generate genuine tripartite entanglement, with the resulting quantum correlations governed by scattering momentum and initial entanglement while exhibiting relaxed monogamy constraints in the non-relativistic regime.

Zan Cao, Meng-Long Song, Xue-Ke Song, Liu Ye, Dong Wang2026-04-30
⚛️ quantum physics

Large-Scale Quantum Circuit Simulation on an Exascale System for QPU Benchmarking

This study benchmarks the 98-qubit Quantinuum Helios-1 quantum processor by comparing its experimental outputs against large-scale noiseless simulations on Europe's JUPITER exascale supercomputer, revealing that the device maintains coherent performance up to 93 qubits before its results become statistically indistinguishable from random sampling.

J. A. Montanez-Barrera, Kristel Michielsen2026-04-30
⚛️ quantum physics

A Multi-Level Integrity Evaluation Framework for Quantum Circuits under Controlled Anomaly Injection

This paper proposes a multi-level integrity evaluation framework for quantum circuits that combines Structural, Operational, and Interaction Graph metrics to overcome the limitations of single-aspect validation, demonstrating through controlled anomaly injection that a composite approach is essential for reliably detecting deviations that structural analysis alone misses.

Ejaz Ahmed, Boshuai Ye, Syed Hamza Shah, Muhammad Azeem Akbar, Arif Ali Khan2026-04-30
⚛️ quantum physics

Over forty years of research towards the understanding of Quantum Brownian Motion -- the contributions of A. O. Caldeira

This paper reviews Amir O. Caldeira's four-decade-long contributions to quantum Brownian motion, highlighting his foundational work on dissipation and tunneling, his development of models beyond the Caldeira-Leggett framework, and his lasting influence on quantum decoherence and thermodynamics.

Marcus V. S. Bonança, Sebastian Deffner, Gert-Ludwig Ingold2026-04-30
⚛️ quantum physics

Random Number Generators in Advanced Optical Experiments: A Comparative Analysis of Semiclassical, Quantum, and Hybrid Architectures

This paper presents a comparative analysis of optical random number generation architectures, demonstrating that a novel hybrid system combining attenuated laser and heralded single-photon sources achieves both high generation rates and superior statistical quality, sometimes surpassing sequences processed by traditional randomness extractors.

Daniil D. Reshetnikov, Anna A. Kretova, Anastasia A. Fominova, Evgenii A. Vashukevich, Tatiana Y. Golubeva, Kirill S. Ti (…)2026-04-30
⚛️ quantum physics

Reservoir-mediated spin entanglement in the mean-force Gibbs state

This paper derives approximate analytic expressions for the mean-force Gibbs state of two qubits strongly coupled to a common thermal reservoir, revealing that equilibrium entanglement is a non-monotonic function of coupling strength and can be enhanced by broadening the reservoir's spectral density, thereby establishing strong system-reservoir coupling as a viable resource for generating entanglement.

L. A. Williamson, W. McEniery, F. Cerisola, J. Anders2026-04-30