37 citations · 170 across the 14 of their papers we have counts for
10 papers · 1 filter
Effective Hamiltonian approach to the quantum phase transitions in the extended Jaynes-Cummings model
H. T. Cui, Y. A. Yan, M. Qin +1
The study of phase transitions in dissipative quantum systems based on the Liouvillian is often hindered by the difficulty of constructing a time-local master equation when the sys…
Effective Hamiltonian approach to the exact dynamics of open system by complex discretization approximation for environment
H. T. Cui, Y. A. Yan, M. Qin +1
The discretization approximation method commonly used to simulate the dynamics of quantum system coupled to the environment in continuum often suffers from the periodically partial…
Localization-enhanced dissipation in a generalized Aubry-André-Harper model coupled with Ohmic baths
H. T. Cui, M. Qin, L. Tang +2
In this work, the exact dynamics of excitation in the generalized Aubry-André-Harper model coupled with an Ohmic-type environment is discussed by evaluating the survival probabilit…
Open dynamics in the Aubry-André-Harper model coupled to a finite bath: the influence of localization in the system and dimensionality of bath
H. T. Cui, M. Qin, L. Tang +2
The population evolution of single excitation is studied in the Aubry- André- Harper (AAH) model coupled to a -dimensional simple lattices bath with a focus on the effe…
Edge state, bound state and anomalous dynamics in the Aubry-André-Haper system coupled to non-Markovian baths
H. T. Cui, H. Z. Shen, M. Qin +1
Bound states and their influence on the dynamics of an one-dimensional tight-binding system subject to environments are studied in this paper. We identify specifically three kinds…
Enhanced exciton transmission by quantum-jump-based feedback
Y. Q. Ji, M. Qin, X. Q. Shao +1
With rotating-wave approximation (RWA), we show in this paper that exciton transmission in a one-dimensional two-level molecule chain embedded in a cavity can be enhanced or suppre…
Optical Schrödinger Cat States in One Mode and two Coupled-Modes Subject to Environments
X. L. Zhao, Z. C. Shi, M. Qin +1
Taking the decoherence into account, we investigate nonclassical features of the optical Schrödinger cat states in one mode and two coupled-modes systems with two-photon driving. I…
Quantum response theory for open systems and its application to Hall conductance
H. Z. Shen, M. Qin, Y. H. Zhou +2
Quantum linear response theory considers only the response of a closed quantum system to a perturbation up to first order in the perturbation. This theory breaks down when the syst…
Exact non-Markovian master equation for a driven damped two-level system
H. Z. Shen, M. Qin, Xiao-Ming Xiu +1
Driven two-level system is a useful model to describe many quantum objects, particularly in quantum information processing. However, the exact master equation for such a system is…
Single-Photon Storing in Coupled Non-Markovian Atom-Cavity System
H. Z. Shen, M. Qin, X. X. Yi
Taking the non-Markovian effect into account, we study how to store a single photon of arbitrary temporal shape in a single atom coupled to an optical cavity. Our model applies to…