Generation of long-living entanglement between two separate three-level atoms

Date
2005
Authors
Çakir, Ö.
Dung, H. T.
Knöll, L.
Welsch, Dirk- Gunnar
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Source Title
Physical Review A - Atomic, Molecular, and Optical Physics
Print ISSN
1050-2947
Electronic ISSN
Publisher
The American Physical Society
Volume
71
Issue
3
Pages
Language
English
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Abstract

A scheme for nonconditional generation of long-living maximally entangled states between two spatially well separated atoms is proposed. In the scheme, A-type atoms pass a resonatorlike equipment of dispersing and absorbing macroscopic bodies giving rise to body-assisted electromagnetic field resonances of well-defined heights and widths. Strong atom-field coupling is combined with weak atom-field coupling to realize entanglement transfer from the dipole-allowed transitions to the dipole-forbidden transitions, whereby the entanglement is preserved when the atoms depart from the bodies and from each other. The theory is applied to the case of atoms passing by a microsphere.

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