Deterministic distribution of four-photon Dicke state over an arbitrary collective-noise channel with cross-Kerr nonlinearity

作者：Wang, Mei-Yu; Yan, Feng-Li^*; Gao, Ting^*

来源：Scientific Reports, 2016, 6(1): 29853.

DOI：10.1038/srep29853

• HORNE-ZEILINGER STATES
• ENTANGLED STATES
• QUANTUM
• COMMUNICATION
• PURIFICATION
• EXPLORATION
• GAMES

We present two deterministic quantum entanglement distribution protocols for a four-photon Dicke polarization entangled state resorting to the frequency and spatial degrees of freedom, which are immune to an arbitrary collective-noise channel. Both of the protocols adopt the X homodyne measurement based on the cross-Kerr nonlinearity to complete the task of the single-photon detection with nearly unit probability in principle. After the four receivers share the photons, they add some local unitary operations to obtain a standard four-photon Dicke polarization entangled state.

• 出版日期2016-7-14
• 单位河北师范大学