scholarly journals Spin squeezing in Bose—Einstein condensates: Limits imposed by decoherence and non-zero temperature

2011 ◽  
Vol 7 (1) ◽  
pp. 86-97 ◽  
Author(s):  
Alice Sinatra ◽  
Jean-Christophe Dornstetter ◽  
Yvan Castin
Keyword(s):  
Spin Squeezing ◽  
Zero Temperature ◽  
Bose Einstein

Spin Squeezing in Degenerate and Non-degenerate Atomic Vapors: Some Approaches to Atomic Entanglement

2001 ◽  
Vol 56 (1-2) ◽  
pp. 35-40
Author(s):  
Nicholas P. Bigelow
Keyword(s):  
Recent Work ◽  
Room Temperature ◽  
Spin Squeezing ◽  
Squeezed States ◽  
Atomic Vapors ◽  
The Creation ◽  
Bose Einstein ◽  
Atomic Entanglement

AbstractIn this paper we discuss our recent work on the creation of spin-squeezed states in both thermal (room temperature) gasses and in spinor Bose-Einstein condensates.

scholarly journals Entanglement and spin squeezing of Bose-Einstein-condensed atoms

2003 ◽  
Vol 68 (4) ◽  
Author(s):  
M. Zhang ◽  
Kristian Helmerson ◽  
L. You
Keyword(s):  
Spin Squeezing ◽  
Bose Einstein

Non-Markovian Dynamics of Spin Squeezing Under Detuning Modulation

2017 ◽  
Vol 24 (01) ◽  
pp. 1750003
Author(s):  
Xing Xiao ◽  
Jia-Ju Wu ◽  
Wo-Jun Zhong ◽  
Yan-Ling Li
Keyword(s):  
Sudden Death ◽  
Open Systems ◽  
Spin Squeezing ◽  
Zero Temperature ◽  
Quantum Metrology ◽  
Markovian Dynamics ◽  
Long Time ◽  
Markovian Regime

The dynamics of spin squeezing of an ensemble of N separate spin-1/2 particles, each coupled to a zero-temperature non-Markovian reservoir have been investigated. We show that the initial spin squeezing could be prolonged for a long time by utilizing detuning modification. We further explore that the spin squeezing sudden death (SSSD) could be circumvented with the increasing of detuning. By comparison with the results in Markovian regime with detuning and those in non-Markovian regime without detuning, we conclude that the disappearance of SSSD and the robust preservation of spin squeezing should be attributed to the combination of detuning and non-Markovian effect. The present results may be of direct importance for quantum metrology in open systems.

scholarly journals Limit of Spin Squeezing in Finite-Temperature Bose-Einstein Condensates

2011 ◽  
Vol 107 (6) ◽  
Author(s):  
A. Sinatra ◽  
E. Witkowska ◽  
J.-C. Dornstetter ◽  
Yun Li ◽  
Y. Castin
Keyword(s):  
Finite Temperature ◽  
Spin Squeezing ◽  
Bose Einstein

Spin Squeezing in Two-Species Bose-Einstein Condensate

2012 ◽  
Vol 51 (12) ◽  
pp. 3925-3932 ◽  
Author(s):  
Song-Song Li ◽  
Yan-Hu Jiang ◽  
Zhen-Ya Liu
Keyword(s):  
Spin Squeezing ◽  
Einstein Condensate ◽  
Bose Einstein Condensate ◽  
Bose Einstein
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