预热处理的典型性
Typicality of Prethermalization
摘要：
预热化（Prethermalization）是指可积多体系统在弱可积性破坏微扰存在下可能表现出的显著弛豫行为：在初始瞬态消失后，它会在很长一段时间内保持接近某种非热稳态，但在更大的时间尺度上，它最终会切换到适当的热平衡行为。通过扩展Deutsch在Phys.Rev.A43，2046（1991）中的概念框架，我们分析性地预言预热化是一类非常普遍的弱扰动系统的典型特征。
英文摘要：
Prethermalization refers to the remarkable relaxation behavior which an integrable many-body system in the presence of a weak integrability-breaking perturbation may exhibit: After initial transients have died out, it stays for a long time close to some non-thermal steady state, but on even much larger time scales it ultimately switches over to the proper thermal equilibrium behavior. By extending Deutsch's conceptual framework from Phys. Rev. A 43, 2046 (1991), we analytically predict that prethermalization is a typical feature for a very general class of such weakly perturbed systems.
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