Threshold for nonthermal stabilization of open quantum systems

2013/10/22 by C. Y. Cai, Li‐Ping Yang, Li-Ping Yang +1 · 29 citations
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #quant-ph

paper · pdf · doi:10.1103/physreva.89.012128

published in Physical Review A 89(1) (American Physical Society) · 3 pages, 3 figures

arxiv created 2013/10/22 · openalex publication_date 2014/01/29 · arxiv updated 2015/06/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We generally study whether or not the information of open quantum systems would be totally erased by their surrounding environments in thermalization processes. A complex system composed of a harmonic oscillator and its environment is studied. When the interaction spectral density contains zero-value regions, there is a threshold of system-bath coupling, \ensuremathη_c, above which the initial information of the system partially remains. We estimated this threshold by the properties of the system and its bath, i.e., the density of the environment states. Thus, its long-time stabilization deviates from the usual thermalization. This nonthermal stabilization happens as a non-Markovian effect.

Citations

• Dynamical phases for the evolution of the entanglement between two oscillators coupled to the same environment
• Quantum tunnelling in a dissipative system
• Introduction to quantum noise, measurement, and amplification
• Dynamics of the dissipative two-state system
• Irreversibility and Heat Generation in the Computing Process