Dephasing of two interacting qubits under the influence of thermal reservoirs

被引：22

作者：

Ban, Masashi ^{[1
]}

机构：

[1] Ochanomizu Univ, Grad Sch Humanities & Sci, Bunkyo Ku, Tokyo 1128610, Japan

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 03期

关键词：

ENTANGLEMENT;

D O I：

10.1103/PhysRevA.80.032114

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A phase relaxation process of interacting two qubits is studied by means of the quantum master equation, where each qubit is influenced by an independent thermal reservoir. The damping operator of the quantum master equation consists of two parts; one includes the effects of the interaction between the qubits and the other does not. It is shown that the interaction significantly affects the phase relaxation process. The decoherence of entanglement is investigated for the two qubits initially prepared in the X state.

引用

页数：8

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