通过量子相干分布揭示有限温度下的多体相
Revealing Many-Body Phases at finite temperatures through Quantum Coherence Distribution
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中文总结 AI 辅助
该研究提出基于量子相干分布的诊断框架，用于探测有限温度下的单粒子与多体相，可捕捉量子相变特征，其相干分布熵对热涨落鲁棒，能揭示多体相的相关性质。
中文摘要 AI 辅助
我们引入了一个基于量子相干全概率分布的诊断框架，用于探测有限温度下的单粒子相和多体相。我们首先将该方法应用于非相互作用Aubry-André模型的局域化相变，随后将分析扩展到其相互作用对应模型，该模型的相图要丰富得多。我们表明，相干分布的矩能为量子相变提供清晰的特征，并捕捉多体相的出现。更重要的是，我们发现相干分布的熵是一个更强大的指示器，它能保留潜在量子相的清晰特征，同时对不断增强的热涨落表现出极强的鲁棒性。
英文摘要
We introduce a diagnostic framework based on the full probability distribution of quantum coherence to probe single-particle and many-body phases at finite temperature. We first apply this approach to the localization transition in the non-interacting Aubry-André model and then extend the analysis to its interacting counterpart, whose phase diagram is substantially richer. We show that the moments of the coherence distribution provide clear signatures of quantum phase transitions and capture the emergence of many-body phases. More importantly, we find that the entropy of the coherence distribution emerges as an even more powerful indicator, retaining clear signatures of the underlying quantum phases while remaining remarkably robust against increasing thermal fluctuations.
发表机构
- Università della Calabria（卡拉布里亚大学）
- INFN, Gruppo collegato di Cosenza（意大利国家核物理研究所，科森扎协作组）
机构由 AI 辅助整理，请以论文原文为准。
