Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2013-07-01

Journal: INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS

Included Journals: SCIE

Volume: 52

Issue: 7

Page Number: 2296-2302

ISSN: 0020-7748

Key Words: Quantum correlation; Moving center of mass; Quantum discord; Photon recoil

Abstract: By taking into account spatial degrees of freedom of the atoms, we study the dynamics of the quantum correlation between the electronic states of two atoms, separately placed in two single-mode ring cavities. We show that the quantum correlation of the atomic electronic states can decay to almost zero in a finite time, and the quantum correlation between the cavities depends on the spatial spread of the atoms.