Entanglement transfer via the Raman atom-cavity-field interaction

2010 ◽  
Vol 19 (9) ◽  
pp. 094206 ◽  
Author(s):  
Liang Mai-Lin ◽  
Yuan Bing
Keyword(s):  
Cavity Field ◽  
Field Interaction ◽  
Entanglement Transfer

PAIRWISE ENTANGLEMENT DYNAMICS OF A MULTIPARTITE SYSTEM IN THE TAVIS–CUMMINGS MODEL

2009 ◽  
Vol 07 (07) ◽  
pp. 1337-1348
Author(s):  
FENG HAN ◽  
YUN-JIE XIA
Keyword(s):  
Degrees Of Freedom ◽  
Single Mode ◽  
Total System ◽  
Entanglement Sudden Death ◽  
Entanglement Dynamics ◽  
Cavity Field ◽  
Atom Pair ◽  
Multipartite System ◽  
Entanglement Transfer ◽  
Single Mode Cavity

The pairwise entanglement dynamics in a multipartite system consisting of three two-level atoms A, B, C and a single-mode cavity field a is studied via negativity. Three atoms are arranged in such a way that atoms BC are embedded in and locally interact with the cavity while atom A is located in a spatially separate place outside of the cavity. Initially, atom-pair AB is prepared in a Bell-like state while atom C in a superposition of ground and excited state, |gC〉 and |eC〉. It shall be shown that all the pairwise negativities of the total system including atoms and cavity undergo qualitatively different evolutions. The so-called entanglement sudden death is observed for atom-pair AB under certain conditions and the entanglement transfer among all the possible degrees of freedom of the whole system is also discussed.

scholarly journals Entanglement dynamics for two spins in an optical cavity – field interaction induced decoherence and coherence revival

2017 ◽  
Vol 25 (15) ◽  
pp. 17051 ◽  
Author(s):  
Xue-Min Bai ◽  
Chun-Ping Gao ◽  
Jun-Qi Li ◽  
Ni Liu ◽  
J.-Q. Liang
Keyword(s):  
Optical Cavity ◽  
Entanglement Dynamics ◽  
Cavity Field ◽  
Field Interaction
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