Preparing a GHZ state, or an EPR state, with the one-atom maser

被引：16

作者：

Englert, BG

Walther, H

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[2] Univ Ulm, Abt Quantenphys, D-89069 Ulm, Germany

[3] Univ Munich, Sekt Phys, D-85748 Garching, Germany

来源：

OPTICS COMMUNICATIONS | 2000年 / 179卷 / 1-6期

关键词：

one-atom maser; quantum entanglement; GHZ states; EPR states;

D O I：

10.1016/S0030-4018(99)00728-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

When operated suitably, the one-atom maser can entangle the cavity field with two atoms such that the resulting state is a superposition of a Greenberger-Horne-Zeilinger (GHZ) state and another component. This unwanted component can be suppressed substantially by exploiting trapping states. Alternatively, for another choice of parameters the second component is an Einstein-Podolsky-Rosen (EPR) state. In both cases, one can pick out either the EPR or the GHZ component by measuring the parity of the cavity field with the aid of a third atom. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：283 / 288

页数：6

共 35 条

[1] Simple scheme for state measurement [J].