195 citations · 464 across the 9 of their papers we have counts for
9 papers
Kerr-effect-based quantum logical gates in decoherence-free subspace
Fang-Fang Du, Gang Fan, Xue-Mei Ren
The decoherence effect caused by the coupling between the system and the environment undoubtedly leads to the errors in efficient implementations of two (or three) qubit logical ga…
Refined quantum gates for -type atom-photon hybrid systems
Yi-Ming Wu, Gang Fan, Fang-Fang Du
High-efficiency quantum information processing is equivalent to the fewest quantum resources and the simplest operations by means of logic qubit gates. Based on the reflection geom…
Error-detected three-photon hyperparallel Toffoli gate with state-selective reflection
Y. M. Wu, G. Fan, F. F. Du
We present an error-detected hyperparallel Toffoli (hyper-Toffoli) gate for a three-photon system based on the interface between polarized photon and cavity-nitrogen-vacancy(NV) ce…
Deterministic and complete hyperentangled Bell states analysis assisted by frequency and time interval degrees of freedom
Xin-Jie Zhou, Wen-Qiang Liu, Hai-Rui Wei +2
Hyperentangled Bell states analysis (HBSA) is an essential building block for certain hyper-parallel quantum information processing. We propose a complete and deterministic HBSA sc…
Complete hyperentangled Bell states analysis for polarization-spatial-time-bin degrees of freedom with unity fidelity
Xin-Jie Zhou, Wen-Qiang Liu, Yan-Bei Zheng +2
Hyperentangled states can outperform their classical counterparts on solving certain tasks. Here we present a simplified scheme for completely distinguishing two-photon hyperentang…
Systematic entanglement concentration for unknown less-entangled three-photon W states
Fang-Fang Du, Fu-Guo Deng
We present a systematic entanglement concentration protocol (ECP) for an arbitrary unknown less-entangled three-photon W state, resorting to the optical property of the quantum-dot…
Two-step hyperentanglement purification with the quantum-state-joining method
Bao-Cang Ren, Fang-Fang Du, Fu-Guo Deng
Hyperentanglement is a promising resource in quantum information processing, especially for increasing the channel capacity of long-distance quantum communication. Hyperentanglemen…
Hyperentanglement concentration for two-photon four-qubit systems with linear optics
Bao-Cang Ren, Fang-Fang Du, Fu-Guo Deng
Hyperentanglement, defined as the entanglement in several degrees of freedom (DOFs) of a quantum system, has attracted much attention recently. Here we investigate the possibility…
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…