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8 papers · 2 filters
Correlation dynamics of a two-qubit system in a Bell-diagonal state under non-identical local noises
Bao-Cang Ren, Hai-Rui Wei, Fu-Guo Deng
The property of quantum correlation has been studied in recent years, especially for the quantum and classical correlations affected by environment. The dynamics of quantum and cla…
Single-photon-assisted entanglement concentration of a multi-photon system in a partially entangled W state with weak cross-Kerr nonlinearity
Fang-Fang Du, Tao Li, Bao-Cang Ren +2
We propose a nonlocal entanglement concentration protocol (ECP) for -photon systems in a partially entangled W state, resorting to some ancillary single photons and the parity-c…
Geometric measure of quantum discord for a two-parameter class of states in a qubit-qutrit system under various dissipative channels
Hai-Rui Wei, Bao-Cang Ren, Fu-Guo Deng
Quantum discord, as a measure of all quantum correlations, has been proposed as the key resource in certain quantum communication tasks and quantum computational models without con…
High-efficiency multipartite entanglement purification of electron-spin states with charge detection
Tao Li, Bao-Cang Ren, Hai-Rui Wei +2
We present a high-efficiency multipartite entanglement purification protocol (MEPP) for electron-spin systems in a Greenberger-Horne-Zeilinger state based on their spins and their…
Complete hyperentangled-Bell-state analysis for photon systems assisted by quantum-dot spins in optical microcavities
Bao-Cang Ren, Hai-Rui Wei, Ming Hua +2
Bell-state analysis (BSA) is essential in quantum communication, but it is impossible to distinguish unambiguously the four Bell states in the polarization degree of freedom (DOF)…
Quantum simulation of artificial Abelian gauge field using nitrogen-vacancy center ensembles coupled to superconducting resonators
W. L. Yang, Zhang-qi Yin, Z. X. Chen +3
We propose a potentially practical scheme to simulate artificial Abelian gauge field for polaritons using a hybrid quantum system consisting of nitrogen-vacancy center ensembles (N…