Effective protocol for preparation of three-atom Greenberger-Horne-Zeilinger state and W state with the help of cross-Kerr nonlinearity

• Authors: Yi-Hao Kang , Yan Xia , Pei-Min Lu
• Languages of publication: EN

Abstracts

EN

We propose a protocol to generate a Greenberger-Horne-Zeilinger (GHZ) state andWstate by using simple linear elements and quantum nondemolition detectors (QNDs). With the help of cross-Kerr nonlinearity, our protocol can generate the intended states with only one setup, and the probability of getting a W state is greatly increased when compared with previous schemes [Phys. Rev. A 75 (2007) 044301]. Also, our proposed protocol is realizable in experiments.

Keywords

EN

GHZ state; W state; quantum nondemolition detector; cross-Kerr nonlinearity

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2013
• Volume: 11
• Issue: 8
• Pages: 1030-1035

Dates

published

1 - 8 - 2013

online

23 - 10 - 2013

Contributors

author

Yi-Hao Kang

• Department of Physics, Fuzhou University, Fuzhou, 350002, China

author

Yan Xia

• Department of Physics, Fuzhou University, Fuzhou, 350002, China

author

Pei-Min Lu

• Department of Physics, Fuzhou University, Fuzhou, 350002, China

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Identifiers

DOI

10.2478/s11534-013-0289-y