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

A. Sinatra, E. Witkowska, J.-C. Dornstetter, Yun Li, and Y. Castin
Phys. Rev. Lett. 107, 060404 – Published 3 August 2011

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 N 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.

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  • Received 9 April 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.060404

© 2011 American Physical Society

Authors & Affiliations

A. Sinatra1, E. Witkowska2, J.-C. Dornstetter1, Yun Li1, and Y. Castin1

  • 1Laboratoire Kastler Brossel, Ecole Normale Supérieure, UPMC and CNRS, Paris, France
  • 2Institute of Physics, Polish Academy of Sciences, Warszawa, Poland

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Issue

Vol. 107, Iss. 6 — 5 August 2011

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