Open AccessEntanglement evolution of field-atom and atom-atom in Tavis-Cummings model
Author(s) -
Guang-Tie Liang,
Xian-Ting Liang
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.50
Subject(s) - quantum entanglement , physics , atom (system on chip) , field (mathematics) , quantum mechanics , time evolution , atomic physics , quantum , mathematics , computer science , pure mathematics , embedded system
In this paper we have investigated the entanglement evolutions between a two-level atom and a single-mode field as well as two two-level atoms in different W-like initial states in T-C model. It is shown that the evolutions of the formation entanglement between them are periodical, and the periods of the entanglement evolutions are different according to the difference of the initial states.The so-called sudden death of entanglement occures between two atoms as the initial states is some W-like initial state.