IMPLEMENTING AN n-QUBIT FREDKIN GATE WITH SUPERCONDUCTING QUANTUM-INTERFERENCE DEVICES IN CAVITY QED

被引：0

作者：

Zheng Anshou ^{[1
,2
,3
]}

Cheng Yongjin ^{[1
]}

Liu Jibin ^{[2
]}

Wang Xicheng ^{[1
]}

Zheng Yuan ^{[1
]}

机构：

[1] China Univ Geosci, Coll Math & Phys, Wuhan 430074, Peoples R China

[2] China Univ Geosci, Inst Mat Modeling Computat Phys, Wuhan 430074, Peoples R China

[3] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2011年 / 25卷 / 21期

基金：

中国国家自然科学基金;

关键词：

Fredkin gate; superconducting quantum-interference device; cavity; SCHEME; COMPUTERS; DYNAMICS; STATES;

D O I：

10.1142/S0217979211100874

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An alternative scheme is proposed in this paper to realize an n-qubit Fredkin gate with superconducting quantum-interference device ( SQUID) in cavity QED. The multiqubit logical gate is essentially accomplished by a sequence of operations on only two SQUIDs in a large-detuned cavity. In the scheme, the two logical states of a qubit are presented by the two lowest states of a SQUID and the cavity is always in vacuum state so that the limit on the cavity is not serious.

引用

页码：2915 / 2924

页数：10