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

• 来源期刊: 中国物理（英文版）
• 关键词: quantum phase gate Λ-type three-level atom bimodal cavity fidelity
• 年，卷（期）: 2006,（11）
• 页码范围: 2518-2522
• 页数: 5页
• 语种: 英文

摘要

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%.