Quantum logic gates using Stark-shifted Raman transitions in a cavity

被引：81

作者：

Biswas, A ^{[1
]}

Agarwal, GS ^{[1
]}

机构：

[1] Phys Res Lab, Ahmadabad 380009, Gujarat, India

来源：

PHYSICAL REVIEW A | 2004年 / 69卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.69.062306

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a scheme to realize the basic two-qubit logic gates such as the quantum phase gate and the controlled-NOT gate using a detuned optical cavity interacting with a three-level Raman system. We discuss the role of Stark shifts, which are as important as the terms leading to the two-photon transition. The operation of the proposed logic gates involves metastable states of the atom and hence is not affected by spontaneous emission. These ideas can be extended to produce multiparticle entanglement.

引用

页码：062306 / 1

页数：5

共 40 条

[1]

AGARWAL GS, QUANTPH0402116

[2] CONDITIONAL QUANTUM DYNAMICS AND LOGIC GATES [J].

BARENCO, A ;

DEUTSCH, D ;

EKERT, A ;

JOZSA, R .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4083-4086

[3] ELEMENTARY GATES FOR QUANTUM COMPUTATION [J].

BARENCO, A ;

BENNETT, CH ;

CLEVE, R ;

DIVINCENZO, DP ;

MARGOLUS, N ;

SHOR, P ;

SLEATOR, T ;

SMOLIN, JA ;

WEINFURTER, H .

PHYSICAL REVIEW A, 1995, 52 (05) :3457-3467

[4] Quantum logic gates in optical lattices [J].

Brennen, GK ;

Caves, CM ;

Jessen, PS ;

Deutsch, IH .

PHYSICAL REVIEW LETTERS, 1999, 82 (05) :1060-1063

[5] QUANTUM COMPUTATIONS WITH COLD TRAPPED IONS [J].

CIRAC, JI ;

ZOLLER, P .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4091-4094

[6] A scalable quantum computer with ions in an array of microtraps [J].

Cirac, JI ;

Zoller, P .

NATURE, 2000, 404 (6778) :579-581

[7]

DASGUPTA S, UNPUB

[8] Experimental demonstration of a controlled-NOT wave-packet gate [J].

DeMarco, B ;

Ben-Kish, A ;

Leibfried, D ;

Meyer, V ;

Rowe, M ;

Jelenkovic, BM ;

Itano, WM ;

Britton, J ;

Langer, C ;

Rosenband, T ;

Wineland, DJ .

PHYSICAL REVIEW LETTERS, 2002, 89 (26) :1-267901

[9] 2-BIT GATES ARE UNIVERSAL FOR QUANTUM COMPUTATION [J].

DIVINCENZO, DP .

PHYSICAL REVIEW A, 1995, 51 (02) :1015-1022

[10] QUANTUM COMPUTATION [J].

DIVINCENZO, DP .

SCIENCE, 1995, 270 (5234) :255-261

← 1 2 3 4 →