⚛️ Category

quant-ph

11028 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.

🔬 materials science

Bounding Retraining Equivalence and the Deletion Floor in Materials Machine Unlearning

This paper addresses the ambiguity of post-deletion accuracy in materials machine learning by defining a "deletion floor" based on retraining equivalence, establishing theoretical bounds that link low deletion floors to retained data redundancy, and demonstrating empirically that request-level unlearning evaluations must jointly report reference loss, prediction change, and retained utility to distinguish between effective unlearning and mere data suppression.

Can Polat, Mustafa Kurban, Erchin Serpedin, Hasan Kurban2026-09-29
⚛️ quantum physics

Experimental Realization and Phase-Space Winding of a Topological Defect State in the Quantum Rabi Model

This paper reports the experimental realization of a topological defect state in a single trapped 171Yb+^{171}\mathrm{Yb}^{+} ion, demonstrating its tunable phase-space winding numbers and dynamical properties through characteristic-function tomography and carrier-amplitude modulation within the quantum Rabi model.

Kyungmin Lee, Jiyong Kang, Sunkyu Yu, Jaehun You, Wonhyeong Choi, Taehyun Kim2026-09-29
⚛️ general relativity

A technological capability scale for civilizations from the Kardashev and Barrow scales

This paper proposes a unified technological capability scale, defined as the sum of the Kardashev energy index and a Barrow efficiency index, which ranks civilizations by their control operations per second and extends from current human capabilities to a theoretical ultimate technology capable of dissipating the maximum possible power into a black hole in de Sitter space.

Volkan Gurses2026-09-29
⚛️ quantum physics

Monotonicity of the Rényi channel capacity under non-signaling assisted channel simulation

This paper proves that non-signaling correlations shared between sender and receiver cannot increase the Rényi channel capacity of a classical channel at any order, thereby establishing that non-signaling simulation offers no advantage over standard shared randomness for improving random-coding, sphere-packing, or strong-converse exponents.

Tina Shariat, Matt Hoogsteder-Riera, Marco Tomamichel2026-09-29
⚛️ quantum physics

QBX: A Compiler for 2-local Qubit Hamiltonian Simulation on Quantum Chiplets

This paper introduces QBX, the first quantum compiler specifically designed for 2-local qubit Hamiltonian simulation on quantum chiplet architectures, which utilizes a scalable hierarchical approach and a highway mechanism to significantly reduce cross-chiplet communication costs and outperform existing general-purpose and domain-specific compilers in circuit depth and operation count.

Zikun Li, Zhuoming Chen, Zhihao Jia2026-09-29
⚛️ quantum physics

Quantum-Computing Self-Consistent Kohn-Sham DFT: Plane-Wave-Orthonormalized Orbitals with a Dual-Basis Quantum Eigensolver

This paper presents a first-quantization, all-electron Kohn-Sham DFT method for quantum computers that utilizes a plane-wave-orthonormalized orbital basis and a dual-basis quantum eigensolver to achieve high-accuracy self-consistent field calculations, with results validated through classical emulation and hardware demonstrations on an IonQ Forte-1 device.

Lazaro Calderin2026-09-29