Limit of Spin Squeezing in Finite Temperature Bose-Einstein Condensates

Details Limit of Spin Squeezing in Finite Temperature Bose-Einstein Condensates Limit of Spin Squeezing in Finite Temperature Bose-Einstein Condensates

2011-04-11

arxiv.org/abs/1104.1871v1

Physical Review Letters 107 (2011) 060404

Physics

Condensed Matter

Quantum Gases

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.107.060404

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 $N\to \infty$ 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 non-condensed fraction.

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