A Scheme of Conditional Quantum Phase Gate for Dissipative Cavity QED System

被引：1
|
作者：
CAI Jian-Wu
机构：
来源：
CommunicationsinTheoreticalPhysics | 2006年 / 46卷 / 12期
基金：
中国国家自然科学基金;
关键词：
quantum phase gate; single cavity mode; cascade four-level atom; dissipation; fidelity;
D O I：
暂无
中图分类号：
O413.1 [量子力学（波动力学、矩阵力学）];
学科分类号：
070205 ; 0809 ;
摘要：
We propose a scheme to implement a two-qubit conditional quantum phase gate via a single mode cavity and a cascade four-level atom assisted by a classical laser. The quantum information is encoded on the Fock states of the cavity mode and the two metastable ground states of the atom. Even under the condition of systematic dissipations, this scheme can also be realized with fidelity of 98.6% and success probability of 0.767.
引用
收藏
页码：983 / 986
页数：4
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