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Quantum limits of stochastic cooling of a bosonic gas

D. Ivanov, S. Wallentowitz, and I. A. Walmsley
Phys. Rev. A 67, 061401(R) – Published 26 June 2003
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Abstract

The quantum limits of stochastic cooling of trapped atoms are studied. The energy subtraction due to the applied feedback is shown to contain an additional noise term due to atom-number fluctuations in the feedback region. This effect is shown to dominate the cooling efficiency near the condensation point. Furthermore, we show results that indicate that Bose-Einstein condensation could be reached via stochastic cooling.

  • Received 28 October 2002

DOI:https://doi.org/10.1103/PhysRevA.67.061401

©2003 American Physical Society

Authors & Affiliations

D. Ivanov1,*, S. Wallentowitz1,†, and I. A. Walmsley2

  • 1Emmy-Noether Nachwuchsgruppe “Kollektive Quantenmessung und Rückkopplung an Atomen und Molekülen”, Fachbereich Physik, Universität Rostock, Universitätsplatz 3, D-18051 Rostock, Germany
  • 2Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom

  • *Also at Russian Center of Laser Physics, St.-Petersburg State University, 5 Ulianovskaya, Pedrodvoretz, St. Petersburg, Russia.
  • Electronic address: sascha.wallentowitz@physik.uni-rostock.de

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Issue

Vol. 67, Iss. 6 — June 2003

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