1.
Phys Rev Lett
; 107(6): 060404, 2011 Aug 05.
Article
in English
| MEDLINE
| ID: mdl-21902302
ABSTRACT
We show that, at finite temperature, the maximum spin squeezing achievable using interactions in Bose-Einstein condensates has a finite limit when the atom number Nâ∞ at fixed density and interaction strength. We calculate the limit of the squeezing parameter for a spatially homogeneous system and show that it is bounded from above by the initial noncondensed fraction.