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Robust Implementation of a Nonlocal N-Qubit Phase Gate by Interference of Polarized Photons |
| XIA Yan, SONG Jie, SONG He-Shan |
| School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 |
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| Cite this article: |
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XIA Yan, SONG Jie, SONG He-Shan 2008 Chin. Phys. Lett. 25 3150-3153 |
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Abstract We propose a protocol to directly implement the nonlocal phase gate of N λ-type three-level atoms trapped in distant cavities by using interference of polarized photons. The protocol uses the effects of quantum statistics of indistinguishable photons emitted by the atoms inside optical cavities.
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| Keywords:
03.67.Mn
03.65.Ud
42.50.Dv
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Received: 12 June 2008
Published: 29 August 2008
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| PACS: |
03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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42.50.Dv
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(Quantum state engineering and measurements)
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