77 citations · 116 across the 3 of their papers we have counts for
4 papers · 1 filter
Disentanglement of two qubits coupled to an XY spin chain: Role of quantum phase transition
Zi-Gang Yuan, Ping Zhang, Shu-Shen Li
We study the disentanglement of two spin qubits which interact with a general XY spin-chain environment. The dynamical process of the disentanglement is numerically and analyticall…
Detecting a set of entanglement measures in an unknown tripartite quantum state by local operations and classical communication
Yan-Kui Bai, Shu-Shen Li, Hou-Zhi Zheng +1
We propose a more general method for detecting a set of entanglement measures, i.e. negativities, in an \emph{arbitrary} tripartite quantum state by local operations and classical…
The effects of nonlinear couplings and external magnetic field on the thermal entanglement in a two-spin-qutrit system
Guo-feng Zhang, Shu-shen Li
We investigate the effects of nonlinear couplings and external magnetic field on the thermal entanglement in a two-spin-qutrit system by applying the concept of negativity. It is f…
Noiseless method for checking the Peres separability criterion by local operations and classical communication
Yan-Kui Bai, Shu-Shen Li, Hou-Zhi Zheng
We present a method for checking Peres separability criterion in an arbitrary bipartite quantum state within local operations and classical communication scenario. The met…