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Title: Scheme for the generation of entangled atomic state in cavity QED
Authors: Duan, Z.-L.
Chen, Z.-Y.
Zhang, J.-T.
Feng, X.-L. 
Xu, Z.-Z.
Issue Date: Aug-2004
Citation: Duan, Z.-L., Chen, Z.-Y., Zhang, J.-T., Feng, X.-L., Xu, Z.-Z. (2004-08). Scheme for the generation of entangled atomic state in cavity QED. European Physical Journal D 30 (2) : 275-278. ScholarBank@NUS Repository.
Abstract: We propose a scheme to generate the entangled state of two Λ-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.
Source Title: European Physical Journal D
ISSN: 14346060
DOI: 10.1140/epjd/e2004-00086-2
Appears in Collections:Staff Publications

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