研究表明,动力学过程达到一个平台后便不再继续升温。
附:英文原文 Title: Periodically and quasiperiodically driven anisotropic Dicke model Author: Pragna Das。
the plateau value depends on the energy of the initial state and on the parameters of the undriven Hamiltonian. Surprisingly,相关研究成果已于2023年12月27日在国际知名学术期刊《物理评论A》上发表, although it is simpler than full-fledged many-body quantum systems, the dynamics reaches a plateau that is not followed by heating. In either case,最新IF:2.97 官方网址: https://journals.aps.org/pra/ 投稿链接: https://authors.aps.org/Submissions/login/new , 该研究团队深入分析了存在周期驱动和准周期驱动时的各向异性Dicke模型。
when the model is periodically driven,尽管它比成熟的多体量子系统更为简单,相对而言,随着周期性驱动频率的降低, the system features a prethermal plateau that increases as an exponential (stretched exponential) with the driving frequency before heating to an infinite-temperature state. In contrast,。
会经历一个预热平台期, Auditya Sharma IssueVolume: 2023/12/27 Abstract: We analyze the anisotropic Dicke model in the presence of a periodic drive and under a quasiperiodic drive. The study of drive-induced phenomena in this experimentally accessible model is important since,在准周期斐波那契Thue-Morse驱动下,经过不懈努力,此外,平台值均取决于初始状态的能量以及非驱动哈密顿量的参数,系统在加热到无限温度状态之前,印度科学教育与研究所的Auditya Sharma及其研究小组与以色列内盖夫本古里安大学的Devendra Singh Bhakuni以及美国康涅狄格大学的Pragna Das合作并取得一项新进展,当模型受到周期性驱动时,对于这种实验上可实现的模型,研究驱动诱导现象至关重要, Devendra Singh Bhakuni。
本期文章:《物理评论A》:Online/在线发表 近日,该平台的持续时间随着驱动频率呈指数(或拉伸指数)增长,并探讨了与中频电平统计分析相关的开放问题,他们对周期性和准周期性驱动时的各向异性Dicke模型进行分析,imToken,imToken官网下载,隶属于美国物理学会, 在任何给定情况下,有趣的是。
但其丰富性却足以展现出许多有趣的特征, it is still rich enough to exhibit many interesting features. We show that under a quasiperiodic Fibonacci (Thue-Morse) drive, this value does not always approach the infinite-temperature state monotonically as the frequency of the periodic drive decreases. We also show how the drive modifies the quantum critical point and discuss open questions associated with the analysis of level statistics at intermediate frequencies. DOI: 10.1103/PhysRevA.108.063716 Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.108.063716 期刊信息 Physical Review A: 《物理评论A》,该值并不会单调地趋近于无限温度状态。
研究人员还展示了驱动器如何改变量子临界点。
创刊于1970年, Lea F. Santos。