不稳定阈值附近的量子摩擦

IF 3.7 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review B Pub Date : 2025-02-04 DOI:10.1103/physrevb.111.075403

Daigo Oue, Boris Shapiro, Mário G. Silveirinha

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引用次数: 0

摘要

在这项工作中，我们开发了一个分析框架来理解不同稳定状态下的量子摩擦，提供了深度稳定状态和接近不稳定临界阈值的摩擦力的近似表达式。我们的主要发现是分析证明，在不稳定阈值附近，量子摩擦力呈对数发散。通过数值模拟验证了这一结果，揭示了系统接近临界时摩擦不稳定性的行为。我们的研究结果为不稳定性、临界散度和温度在量子和经典体系摩擦动力学中的作用提供了新的见解。2025年由美国物理学会出版

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Quantum friction near the instability threshold

In this work, we develop an analytical framework to understand quantum friction across distinct stability regimes, providing approximate expressions for frictional forces both in the deep stable regime and near the critical threshold of instability. Our primary finding is analytical proof that, near the instability threshold, the quantum friction force diverges logarithmically. This result, verified through numerical simulations, sheds light on the behavior of frictional instabilities as the system approaches criticality. Our findings offer new insights into the role of instabilities, critical divergence, and temperature in frictional dynamics across quantum and classical regimes.

Published by the American Physical Society

2025

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来源期刊

Physical Review B 物理-物理：凝聚态物理

CiteScore

6.70

自引率

32.40%

发文量

审稿时长

3.0 months

期刊介绍： Physical Review B (PRB) is the world’s largest dedicated physics journal, publishing approximately 100 new, high-quality papers each week. The most highly cited journal in condensed matter physics, PRB provides outstanding depth and breadth of coverage, combined with unrivaled context and background for ongoing research by scientists worldwide. PRB covers the full range of condensed matter, materials physics, and related subfields, including: -Structure and phase transitions -Ferroelectrics and multiferroics -Disordered systems and alloys -Magnetism -Superconductivity -Electronic structure, photonics, and metamaterials -Semiconductors and mesoscopic systems -Surfaces, nanoscience, and two-dimensional materials -Topological states of matter