• Chinese Optics Letters
  • Vol. 7, Issue 1, 0182 (2009)
Decun Li, Chunlan Han, and Xunli Feng
Author Affiliations
  • Shandong Vocational and Trade College, Jining 2720172 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
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    DOI: 10.3788/COL20090701.0082 Cite this Article Set citation alerts
    Decun Li, Chunlan Han, Xunli Feng. Repeat-until-success measurement-based scheme for controlled phase gates in a cavity[J]. Chinese Optics Letters, 2009, 7(1): 0182 Copy Citation Text show less

    Abstract

    We propose a new repeat-until-success (RUS) measurement-based scheme to implement quantum controlled phase gates according to the effect of dipole-induced-transparency (DIT) in a cavity and single-photon interference at a 50:50 beam-splitter. In our scheme, the DIT effect can appropriately attach a photon to the state of the dipoles according to their initial state, and in this way, a suitably encoded dipole-photon state is thus prepared. The measurement of the photon after it passing through a 50:50 beam-splitter can project the encoded matter-photon state to either a desired phase gate operation for the matter qubits or to their initial states. The recurrence of the initial state permits us to implement the desired entangling gate in a RUS way.
    Decun Li, Chunlan Han, Xunli Feng. Repeat-until-success measurement-based scheme for controlled phase gates in a cavity[J]. Chinese Optics Letters, 2009, 7(1): 0182
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