Analytical solutions and genuine multipartite entanglement of the three-qubit Dicke model
Analytical solutions and genuine multipartite entanglement of the three-qubit Dicke model
复制标题
三量子位迪克模型的解析解和真正的多部分纠缠
DOI:
10.1103/physreva.94.012317
复制
发表时间:
2016-01
影响因子:
2.9
通讯作者:
Qing-Hu Chen
中科院分区:
文献类型:
--
作者:
Yu-Yu Zhang;Xiang-You Chen;Shu He;Qing-Hu Chen
We present analytical solutions to three qubits and a single-mode cavity coupling system beyond the rotating-wave approximation (RWA). The zero-th order approximation gives correct solutions when the qubits are far detuned from the cavity. The first order approximation, called generalized rotating-wave approximation (GRWA), produces an effective solvable Hamiltonian with the same form as the ordinary RWA one and exhibits substantial improvements of energy levels over the RWA even on resonance. Based on these analytical eigen-solutions, we study both the bipartite entanglement and genuine multipartite entanglement (GME). The dynamics of the concurrence and the GME using the GRWA are in consistent with the numerical ones. Interestingly, the well known sudden death of entanglement occurs in the bipartite entanglement dynamics but not in GME dynamics.
DOI:
10.1136/bmj.323.7325.1375/a
发表时间:
2001-12
期刊:
BMJ : British Medical Journal
影响因子:
--
作者:
K. Barraclough
通讯作者:
K. Barraclough
DOI:
10.1142/9789812386199_others06
发表时间:
2019-11
期刊:
Problems and Solutions on Optics
影响因子:
--
作者:
Jürgen Stuhler;Andrew J. Shields
通讯作者:
Jürgen Stuhler;Andrew J. Shields