Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2010-03-01

Journal: COMMUNICATIONS IN THEORETICAL PHYSICS

Included Journals: ISTIC、SCIE

Volume: 53

Issue: 3

Page Number: 555-559

ISSN: 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.