Shakirov Alexey M, Tsibulsky Sergey V, Antipov Andrey E, Shchadilova Yulia E, Rubtsov Alexey N
1] Department of Physics, Lomonosov Moscow State University, 119992 Moscow, Russia [2] Russian Quantum Center, 143025 Skolkovo, Moscow region, Russia.
Department of Physics, Lomonosov Moscow State University, 119992 Moscow, Russia.
Sci Rep. 2015 Jan 27;5:8005. doi: 10.1038/srep08005.
Metastable quantum dynamics of an asymmetric triangular cluster that is coupled to a reservoir is investigated. The dynamics is governed by bath-mediated transitions, which in part require a thermal activation process. The decay rate is controlled by tuning the excitation spectrum of the frustrated cluster. We use the master equation approach and construct transition operators in terms of many-body states. We analyze dynamics of observables and reveal metastability of an excited state and of a magnetically polarized ground state.
研究了与储能器耦合的非对称三角形团簇的亚稳态量子动力学。该动力学由浴介导的跃迁支配，其中部分跃迁需要热激活过程。通过调整受挫团簇的激发光谱来控制衰减率。我们采用主方程方法，并根据多体状态构造跃迁算符。我们分析可观测量的动力学，并揭示激发态和磁极化基态的亚稳性。
