⚛️ Category

quant-ph

5906 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.

Low-loss Nb on Si superconducting resonators from a dual-use spintronics deposition chamber and with acid-free post-processing

This paper demonstrates that high-quality, low-loss niobium superconducting resonators can be fabricated in a dual-use chamber shared with magnetic materials by employing an acid-free resist strip process that achieves internal quality factors near one million, thereby enabling the integration of superconducting and magnetic systems without compromising device performance.

Maciej W. Olszewski, Jadrien T. Paustian, Tathagata Banerjee, Haoran Lu, Jorge L. Ramirez, Nhi Nguyen, Kiichi Okubo, Rohit Pant, Aleksandra B. Biedron, Daniel C. Ralph, Christopher J. K. Richardson, G (…)2026-06-04🔬 cond-mat.mtrl-sci

Symmetric quantum states: a review of recent progress

This review provides a comprehensive pedagogical analysis of symmetric quantum states, covering their mathematical structure, physical properties, experimental verification methods, and key applications in metrology, error correction, and communication, while also highlighting recent experimental achievements and outlining future research directions.

Carlo Marconi, Guillem Müller-Rigat, Jordi Romero-PallejÃ, Jordi Tura, Anna Sanpera2026-06-04⚛️ quant-ph

Continuous-time quantum walk-based ansätze on neutral atom hardware

This paper demonstrates the implementation of continuous-time quantum walk-based variational ansätze on QuEra's Aquila neutral-atom processor, achieving super-quadratic convergence for unentangled targets and efficient state preparation for entangled targets with inverse spectral gap scaling, thereby establishing a practical pathway for realizing quantum speedups on current analog hardware.

Edric Matwiejew, Jonathan Wurtz, Jing Chen, Pascal Jahan Elahi, Tommaso Macri, Ugo Varetto2026-06-04⚛️ quant-ph

Optimality of universal conclusive entanglement concentration protocols

This paper establishes fundamental limits on the success probability of universal conclusive entanglement concentration protocols for pure two-qubit states, proving the optimality of a known protocol while demonstrating that the requirement of universality imposes a significant efficiency trade-off, resulting in an average success probability of only 2/105 over the Haar measure.

Alexandre C. Orthey, Aby Philip, Tulja Varun Kondra, Alexander Streltsov2026-06-04⚛️ quant-ph

Breaking 1/ϵ1/\epsilon Barrier in Quantum Zero-Sum Games: Generalizing Metric Subregularity for Spectraplexes

This paper refutes the conjecture that semidefinite geometry precludes fast convergence in quantum zero-sum games by proving that algorithms like Optimistic Gradient Descent-Ascent achieve O(log⁡(1/ε))O(\log(1/\varepsilon)) last-iterate convergence to Nash equilibrium through a novel metric subregularity theory for spectraplexes.

Yiheng Su, Emmanouil-Vasileios Vlatakis-Gkaragkounis, Pucheng Xiong2026-06-04⚛️ quant-ph

Quantum Origin of Diffraction from Bright and Dark States

This paper extends a particle-based interpretation of the double-slit experiment to single-slit diffraction by demonstrating that the diffraction pattern arises from projecting photon states onto a single bright mode, while photons at intensity minima reside in an infinite-dimensional dark subspace, thereby providing a unified quantum explanation that bridges particle and wave optics.

Jian-Jian Cheng, Jun-Ling Che, Lin Zhang, Ming-Liang Hu2026-06-04⚛️ quant-ph