Resonant interaction scheme for GHZ state preparation and quantum phase gate with superconducting qubits in a cavity

被引：0

作者：

刘欣 ^{[1
]}

廖庆洪 ^{[2
]}

方光宇 ^{[1
]}

王月媛 ^{[3
]}

刘树田 ^{[1
]}

机构：

[1] Department of Physics,Harbin Institute of Technology

[2] Department of Electronic Information Engineering,Nanchang University

[3] Key Laboratory for Advanced Functional Materials and Excited State Process of Heilongjiang Province,School of Physics and Electronic Engineering,Harbin Normal University

来源：

Chinese Physics B | 2014年 / 23卷 / 02期

关键词：

superconducting qubits; GHZ state; phase gate;

D O I：

暂无

中图分类号：

O431.2 [量子光学];

学科分类号：

070207 ; 0803 ;

摘要：

A scheme is proposed to generate GHZ state and realize quantum phase gate for superconducting qubits placed in a microwave cavity.This scheme uses resonant interaction between the qubits and the cavity mode,so that the interaction time is short,which is important in view of decoherence.In particular,the phase gate can be realized simply with a single interaction between the qubits and the cavity mode.With cavity decay being considered,the fidelity and success probability are both very close to unity.

引用

页码：128 / 132

页数：5

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