Controllable manipulation and entanglement of macroscopic quantum states in coupled charge qubits

被引：125

作者：

You, JQ

Tsai, JS

Nori, F ^{[1
]}

机构：

[1] Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[2] NEC Corp Ltd, Fundamental Res Labs, Tsukuba, Ibaraki 3058051, Japan

[3] Univ Michigan, Ctr Study Complex Syst, Dept Phys, Ctr Theoret Phys, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.68.024510

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an experimentally implementable method to couple Josephson charge qubits and to generate and detect macroscopic entangled states. A large-junction superconducting quantum interference device is used in the qubit circuit for both coupling qubits and implementing the readout. Also, we explicitly show how to achieve a microwave-assisted macroscopic entanglement in the coupled-qubit system.

引用

页数：8

共 25 条

[1] Entanglement and decoherence of a micromechanical resonator via coupling to a Cooper-pair box [J].