We study the transition of a quantum system S from a pure state to a mixed one, which is
induced by the quantum criticality of the surrounding system E coupled to it. To characterize …

We study the physical mechanism of Maxwell's demon (MD), which helps do extra work in
thermodynamic cycles with the heat engine. This is exemplified with one molecule confined …

We present an exactly solvable model to study the role of the system-bath coupling for the
generalized canonical thermalization, which reduces almost all the pure states of the …

We study the energy level structure and quantum dynamics for a cavity optomechanical
system assisted by a single atom. It is found that a triple coupling involving a photon, a …

The effects of photon bunching and antibunching correspond to the classical and quantum
features of the electromagnetic field, respectively. No direct evidence suggests whether …

We describe quantum controllability under the influences of the quantum decoherence
induced by the quantum control itself. It is shown that, when the controller is considered as a …

We propose a theoretical scheme to observe the loss of quantum coherence through the
coupling of the superconducting charge qubit system to a nanomechanical resonator …

摘要近年来, 受量子信息科学发展的启发, 量子统计力学/热力学相关的基本物理问题重新引起了
人们的关注, 导致了一些新的热点研究方向. 本文将首先介绍有关量子热力学的基本概念 …

We reexamine the back-action of emitted photons on the wave packet evolution about the
relative position of two cold atoms. We show that photon recoil resulting from the …

We study the mathematical structure of superoperators describing quantum measurements,
including the entangling measurement—the generalization of the standard quantum …