Quantumness protection for open systems in a double-layer environment

• Published in: Science China. Physics, mechanics & astronomy Vol. 63; no. 5; p. 250312
• Main Authors: Qiao, YuLong, Zhang, JiaMing, Chen, YuSui, Jing, Jun, Zhu, ShiYao
• Format: Journal Article
• Language: English
• Published: Beijing Science China Press 01.05.2020; Springer; Springer Nature B.V
• Subjects: Astronomy; Classical and Continuum Physics; Coupled modes; Holes; Information storage; Observations and Techniques; Open systems; Physics; Physics and Astronomy; Quantum entanglement; Qubits (quantum computing); Reservoirs; quantum noise; decoherence; quantum-state-diffusion equation; open quantum systems

We study the dynamics of two-level atomic systems (qubits) subject to a double-layer environment that consists of a network of single-mode cavities coupled to a common reservoir. A general exact master equation for the dynamics of a qubit system can be obtained by the quantum-state-diffusion (QSD) a...