Title
Scheme for the generation of entangled atomic state in cavity QED
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
European physical journal : D : atomic, molecular and optical physics. - Berlin
Volume/pages
30(2004) :2 , p. 275-278
ISSN
1434-6060
ISI
000223019400013
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
We propose a scheme to generate the entangled state of two Lambda-type three-level atoms trapped in a cavity. The atoms are initially prepared in their excited state and the cavity in vacuum state. Each atom has two possibilities to deexcite to one of the ground states. If two different polarized photons are detected subsequently, it is sure that both atoms are in different ground states. But which atom is in which ground state cannot be determined, the atoms are thus prepared in a superposition of two ground states, i.e., an entangled state. In comparison with the proposal of Hong and Lee [Phys. Rev. Lett. 89, 237901 (2002)], the requirement of a single polarized photon source can be avoided in our scheme.
E-info
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