,A scheme for conditional quantum phase gate via bimodal cavity and a Λ-type three-level atom

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We propose a scheme to implement a two-qubit conditional quantum phase gate for the intracavity field via a single three-level Λ-type atom driven by two modes in a high-Q cavity. The quantum information is encoded on the Fock states of the bimodal cavity. The gate’s averaged fidelity is expected to reach 99.8%.
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