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论文类型：期刊论文

发表时间：2015-01-14

发表刊物：JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

收录刊物：SCIE、EI、Scopus

卷号：48

期号：1

ISSN号：0953-4075

关键字：cavity optomechanical system; nonlinearity; control phase gate

摘要：We propose a scheme for an optomechanical control phase-flip gate(CPFG) based on optomechanical equivalence Kerr nonlinearity. Analytical conditions for realization of CPFG is provided. By numerically solving the master equation of the system, we show that the fidelity of the two-qubit CPFG periodically achieves its maximum values under the condition of the appropriate rate of the coupling strengths. This scheme can break the limit of the Kerr effect at the single-photon level compared with the nature Kerr medium.