scholarly journals Controlling entanglement sudden death and birth in cavity QED

2009 ◽  
Vol 282 (17) ◽  
pp. 3652-3655 ◽  
Author(s):  
Jian-Song Zhang ◽  
Jing-Bo Xu
Keyword(s):  
Sudden Death ◽  
Cavity Qed ◽  
Entanglement Sudden Death

Entanglement sudden death via two-photon processes in cavity QED

2009 ◽  
Vol 42 (19) ◽  
pp. 195507 ◽  
Author(s):  
W B Cardoso ◽  
A T Avelar ◽  
B Baseia ◽  
N G de Almeida
Keyword(s):  
Sudden Death ◽  
Cavity Qed ◽  
Entanglement Sudden Death ◽  
Two Photon

Influence of the Stark Shift on Entanglement Sudden Death and Birth in Cavity QED

2011 ◽  
Vol 28 (1) ◽  
pp. 010301 ◽  
Author(s):  
Jian-Song Zhang ◽  
Ai-Xi Chen ◽  
Kun-Hua Wu
Keyword(s):  
Sudden Death ◽  
Cavity Qed ◽  
Stark Shift ◽  
Entanglement Sudden Death

ENTANGLEMENT TRANSFER IN A MULTIPARTITE CAVITY QED OPEN SYSTEM

2011 ◽  
Vol 09 (supp01) ◽  
pp. 83-92 ◽  
Author(s):  
MATTEO BINA ◽  
FEDERICO CASAGRANDE ◽  
ALFREDO LULLI ◽  
MARCO G. GENONI ◽  
MATTEO G. A. PARIS
Keyword(s):  
Sudden Death ◽  
Cavity Qed ◽  
Optical Cavity ◽  
Single Mode ◽  
Entanglement Sudden Death ◽  
Dissipative Effects ◽  
State Transfer ◽  
Cavity Modes ◽  
Entanglement Transfer ◽  
Multi Mode

We describe the dynamics of tripartite state mapping and entanglement transfer from qubit-like radiation states to two-level atoms via optical cavity modes. When the entangled radiation is carried to the cavities by single-mode fibers, optimal pure and mixed state transfer is predicted for perfect mirror transmittance, and entanglement sudden death (and birth) is demonstrated for Werner input states. The general case of multi-mode fiber coupling is also discussed. The dynamics is finally investigated under various dissipative effects.

Three-Atom Entanglement Sudden Death and Birth in Cavity QED with the Influence of the Stark Shift

2013 ◽  
Vol 662 ◽  
pp. 537-542 ◽  
Author(s):  
Kun Hua Wu ◽  
Qing Feng Huang ◽  
Xiao Qing Zhang
Keyword(s):  
Sudden Death ◽  
Quantum System ◽  
Cavity Qed ◽  
Stark Shift ◽  
The Other ◽  
Entanglement Sudden Death ◽  
Entanglement Dynamics

We investigate the entanglement dynamics in a quantum system consisting of three two-level atoms interacting with three spatially separated cavities with the influence of the Stark shift, and we can find that the entanglement sudden death (ESD) and birth (ESB) will be improved by adjusting the Stark parameters. When we choose the appropriate Stark parameters, the phenomena of ESD and ESB will be appeared, but, which will appear earlier than the other depends on the Stark-shift values.

ENTANGLEMENT DYNAMICS MODULATED BY COUPLING STRENGTH IN CAVITY QED

2008 ◽  
Vol 06 (02) ◽  
pp. 341-346 ◽  
Author(s):  
ZHONG-XIAO MAN ◽  
SU FANG ◽  
YUN-JIE XIA
Keyword(s):  
Energy Transfer ◽  
Sudden Death ◽  
Cavity Qed ◽  
Entanglement Sudden Death ◽  
Entanglement Dynamics ◽  
Entanglement Evolution ◽  
Qubit System ◽  
Coupling Strengths ◽  
Entangled Atoms ◽  
Separate Cavities

We study the dynamics of entanglement for a four-qubit system in cavity QED. Two initially entangled atoms A and B are coupled respectively with spatially separate cavities a and b with coupling strengths gA and gB. We show that when gA ≠ gB, the entanglement will oscillate in the period of entanglement sudden death (ESD) for gA = gB, and the oscillation times are related to the ratios between gA and gB. Also, we show that the coupling strengths have the same effects on the entanglement evolution and energy transfer.

scholarly journals Manipulation of entanglement sudden death in an all-optical setup

2017 ◽  
Vol 34 (3) ◽  
pp. 681 ◽  
Author(s):  
Ashutosh Singh ◽  
Siva Pradyumna ◽  
A. R. P. Rau ◽  
Urbasi Sinha
Keyword(s):  
Sudden Death ◽  
Entanglement Sudden Death ◽  
Optical Setup ◽  
All Optical
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