Two simple schemes for implementing Toffoli gate via atom-cavity field interaction in cavity quantum electrodynamics

• 来源期刊: 中国物理B（英文版）
• 关键词: Toffoli gate cavity quantum electrodynamics
• 年，卷（期）: 2009,（2）
• 页码范围: 440-445
• 页数: 6页
• 语种: 英文

摘要

This paper proposes two schemes for implementing three-qubit Toffoli gate with an atom (as target qubit) sent through a two-mode cavity (as control qubits). The first scheme is based on the large-detuning atom-cavity field interaction and the second scheme is based on the resonant atom-field interaction. Both the situations with and without cavity decay and atomic spontaneous emission are considered. The advantages and the experimental feasibility of these two schemes are discussed.