TY - JOUR
T1 - Exact entanglement dynamics mediated by leaky optical cavities
AU - Chen, Yusui
AU - Ding, Quanzhen
AU - Shi, Wufu
AU - Jun, Jing
AU - Yu, Ting
N1 - Publisher Copyright:
© 2020 IOP Publishing Ltd.
PY - 2020/6/28
Y1 - 2020/6/28
N2 - We present a quantum-state-diffusion equation to characterize the dynamics of a generic atomic system due to the coupling to a leaky cavity mode. As quantum resources, the population, the coherence and even the entanglement of the system would gradually leak out of the cavity. The effect from the leakage of the cavity-mode to the uncontrollable degrees of freedom, e.g. environment, is however not always negative to particular applications of these quantum resources. We investigate the competition between these two mechanisms in the framework of the non-Markovian open-quantum-system dynamics, where the leaky mode serves as a general two-layer bosonic environment. Numerical calculations based on our non-perturbative approach reveal a generation of quantum entanglement in the qubit system due to the coupling to a resonant leaky cavity.
AB - We present a quantum-state-diffusion equation to characterize the dynamics of a generic atomic system due to the coupling to a leaky cavity mode. As quantum resources, the population, the coherence and even the entanglement of the system would gradually leak out of the cavity. The effect from the leakage of the cavity-mode to the uncontrollable degrees of freedom, e.g. environment, is however not always negative to particular applications of these quantum resources. We investigate the competition between these two mechanisms in the framework of the non-Markovian open-quantum-system dynamics, where the leaky mode serves as a general two-layer bosonic environment. Numerical calculations based on our non-perturbative approach reveal a generation of quantum entanglement in the qubit system due to the coupling to a resonant leaky cavity.
KW - cavity QED
KW - leaky cavity
KW - non-Markovian dynamics
KW - open quantum systems
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U2 - 10.1088/1361-6455/ab707c
DO - 10.1088/1361-6455/ab707c
M3 - Article
AN - SCOPUS:85090960857
SN - 0953-4075
VL - 53
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
IS - 12
M1 - 125501
ER -