Preparation of entangled states of atomic qubits via atom-cavity-laser interaction

• 来源期刊: 中国光学快报(英文版)
• 学科: 物理学
• 关键词: 纠缠态原子 相互作用 量子比特 激光器 Bell态 制备 基态原子 量子信息
• 年，卷（期）: 2010,（5）
• 所属期刊栏目: Quantum Optics
• 页码范围: 529-532
• 页数: 4页
• 分类号: O431.2 TP38
• 语种: 英文

摘要

We propose a scheme to prepare the Bell states for atomic qubits trapped in separate optical cavities via atom-cavity-laser interaction.The quantum information of each qubit is encoded on the degenerate ground states of the atom,so the entanglement between them is relatively stable against spontaneous emission.The proposed scheme consists of a Mach-Zehnder interferometer(MZI) with two arms,and each arm contains a cavity with an N-type atom in it.It requires two classical fields and a single-photon source...