20 citations · 43 across the 5 of their papers we have counts for
6 papers
Residual effect on the robustness of multiqubit entanglement
Bao-Kui Zhao, Fu-Guo Deng
We investigate the relation between the entanglement and the robustness of a multipartite system to a depolarization noise. We find that the robustness of a two-qubit system in an…
Efficient faithful qubit transmission with frequency degree of freedom
Xi-Han Li, Bao-Kui Zhao, Yu-Bo Sheng +2
We propose an efficient faithful polarization-state transmission scheme by utilizing frequency degree of freedom besides polarization and an additional qubit prepared in a fixed po…
Genuine tripartite entanglement in quantum brachistochrone evolution of a three-qubit system
Bao-Kui Zhao, Fu-Guo Deng, Feng-Shou Zhang +1
We explore the connection between quantum brachistochrone (time-optimal) evolution of a three-qubit system and its residual entanglement called three-tangle. The result shows that…
Fault tolerant quantum key distribution based on quantum dense coding with collective noise
Xi-Han Li, Bao-Kui Zhao, Yu-Bo Sheng +2
We present two robust quantum key distribution protocols against two kinds of collective noise, following some ideas in quantum dense coding. Three-qubit entangled states are used…
Multipartite entanglement purification with quantum nondemolition detectors
Yu-Bo Sheng, Fu-Guo Deng, Bao-Kui Zhao +2
We present a scheme for multipartite entanglement purification of quantum systems in a Greenberger-Horne-Zeilinger state with quantum nondemolition detectors (QNDs). This scheme do…
Stable and deterministic quantum key distribution based on differential phase shift
Bao-Kui Zhao, Yu-Bo Sheng, Fu-Guo Deng +2
We present a stable and deterministic quantum key distribution (QKD) system based on differential phase shift. With three cascaded Mach-Zehnder interferometers with different arm-l…