21 citations · 61 across the 9 of their papers we have counts for
7 papers · 1 filter
Multipartite entanglement of fermionic systems in noninertial frames revisited
Wen-Chao Qiang, Guo-Hua Sun, Oscar Camacho-Nieto +1
In this work we have revisited a few principal formulae about one-tangle of multipartite entanglement of fermionic systems in noninertial frames calculated in the paper [Phys. Rev.…
Geometric quantum discord of a Jaynes-Cummings atom and an isolated atom
Wen-Chao Qiang, Lei Zhang, Hua-Ping Zhang
We studied the geometric quantum discord of a quantum system consisted of a Jaynes- Cummings atom, a cavity and an isolated atom. The analytical expressions of the geometric quantu…
Geometric global quantum discord of two-qubit X states
Wen-Chao Qiang, Hua-Ping Zhanga, Lei Zhang
Xu [Jianwei Xu, J. Phys. A: Math. Theor. 45 405304 (2012)] generalized geometric quantum discord [B.Dakic, V. Vedral, and C . Brukner, Phys. Rev. Lett. 105 190502 (2010)] to multip…
Entanglement of formation for qubit-qudit system using partition of qudit sytem into a set of qubit system
Wen-Chao Qiang, W. B. Cardoso
Gerjuoy [Phys. Rev. A 67, 052308 (2003)] has derived a closed- form lower bound for the entanglement of formation of a mixed qubit-qudit system (qudit system has d levels with d>=3…
Alternative scheme to generate a supersinglet state of three-level atoms
W. -C. Qiang, W. B. Cardoso, A. T. Avelar +1
In this paper we propose an alternative scheme to generate a supersinglet state of three three-level atoms via a single-mode of a cavity QED based on the two-photon transitions des…
Entropy of entangled three-level atoms interacting with entangled cavity fields: entanglement swapping
Wen-Chao Qiang, W. B. Cardoso, Xin-Hui Zhang
The dynamics of an entangled atomic system in a partial interaction with entangled cavity fields, characterizing an entanglement swapping, have been studied through the use of Von…
Generation of two-photon EPR and Wstates
W. B. Cardoso, W. C. Qiang, A. T. Avelar +1
In this paper we present a scheme for generation of two-photon EPR and W states in the cavity QED context. The scheme requires only one three-level Rydberg atom and two or three ca…