Teleportation of atomic states via position measurements

被引：6

作者：

Tumminello, Michele ^{[1
]}

Ciccarello, Francesco ^{[1
,2
,3
,4
]}

机构：

[1] Univ Palermo, Dipartimento Fis & Tecnol Relat, I-90128 Palermo, Italy

[2] Consorzio Nazl Interuniv Sci Fis Mat, Unita Palermo, Palermo, Italy

[3] Univ Palermo, NEST, I-90123 Palermo, Italy

[4] Univ Palermo, Dipartimento Sci Fis & Astron, I-90123 Palermo, Italy

来源：

PHYSICAL REVIEW A | 2008年 / 77卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.77.023825

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a scheme for conditionally teleporting an unknown atomic state in cavity QED, which requires two atoms and one cavity mode. The translational degrees of freedom of the atoms are taken into account using the optical Stern-Gerlach model. We show that successful teleportation with probability 1/2 can be achieved through local measurements of the cavity photon number and atomic positions. Neither direct projection onto highly entangled states nor holonomous interaction-time constraints are required.

引用

页数：10

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