Observation of glassy dynamics in a disordered quantum spin system
Observation of glassy dynamics in a disordered quantum spin system
复制标题
无序量子自旋系统中玻璃态动力学的观察
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
M. Weidemuller
中科院分区：
文献类型：
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作者：
A. Signoles;T. Franz;R. Alves;M. Garttner;Shannon Whitlock;G. Zurn;M. Weidemuller
理解强相互作用无序量子系统的动力学是现代科学中最具挑战性的问题之一，这是由于诸如热化的崩溃和物质玻璃相的出现等特征。本文报道了在一个孤立的量子自旋系统中发现的反常慢弛豫动力学。总磁化被发现放松次指数类似于经典的玻璃态动力学尚未被管理的建立的非经典相关性。实验以及在半经典模拟中，我们发现朝着一个随机状态的演变是独立的无序的强度达到一个临界值。这表明了无序孤立量子系统中弛豫动力学的统一描述，类似于统计力学对经典自旋玻璃中的非平衡物理学的推广。
Understanding the dynamics of strongly interacting disordered quantum systems is one of the most challenging problems in modern science, due to features such as the breakdown of thermalization and the emergence of glassy phases of matter. We report on the discovery of anomalous slow relaxation dynamics in an isolated quantum spin system realized by a frozen gas of Rydberg atoms. The total magnetization is found to relax sub-exponentially analogous to classical glassy dynamics yet being governed by the build-up of non-classical correlations. Experimentally as well as in semi-classical simulations, we find the evolution towards a randomized state to be independent of the strength of disorder up to a critical value. This suggests a unifying description of relaxation dynamics in disordered isolated quantum systems, analogous to the generalization of statistical mechanics to out-of-equilibrium physics in classical spin glasses.
影响因子：
64.8
作者：
Maximilian Prüfer;Philipp Kunkel;H. Strobel;S. Lannig;D. Linnemann;Christian-Marcel Schmied;J. Berges;T. Gasenzer;M. Oberthaler
通讯作者：
Maximilian Prüfer;Philipp Kunkel;H. Strobel;S. Lannig;D. Linnemann;Christian-Marcel Schmied;J. Berges;T. Gasenzer;M. Oberthaler
影响因子：
64.8
作者：
Bernien, Hannes;Schwartz, Sylvain;Lukin, Mikhail D.
通讯作者：
Lukin, Mikhail D.
影响因子：
16.6
作者：
Lepoutre, S.;Schachenmayer, J.;Laburthe-Tolra, B.
通讯作者：
Laburthe-Tolra, B.