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Indexed by:期刊论文

Date of Publication:2010-03-01

Journal:COMMUNICATIONS IN THEORETICAL PHYSICS

Included Journals:SCIE、ISTIC

Volume:53

Issue:3

Page Number:555-559

ISSN No.:0253-6102

Key Words:entanglement; atoms; spontaneous emission

Abstract:We investigate the entanglement properties between two identical atoms with cascade configuration through the retarded dipole-dipole interaction in free space when their spatial separation is on the order of radiation wavelength or less. We analyze the function of Hamiltonian induced by dipole-dipole interaction. By solving master equation, we show that the spontaneous emission induce entanglement and destroy entanglement too. We also show the long life time of entanglement within cascade configuration.