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Quantum-diffractive background gas collisions in atom-trap heating and loss

S. Bali, K. M. O’Hara, M. E. Gehm, S. R. Granade, and J. E. Thomas
Phys. Rev. A 60, R29(R) – Published 1 July 1999
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Abstract

We derive a simple formula for the heating rate that arises from quantum-diffractive background gas collisions in atom traps. This result appears to explain the residual heating rates reported for recent experiments with a Cs vapor-loaded, far-detuned optical trap at 109 Torr [Phys. Rev. Lett. 81, 5768 (1998)]. Diffractive collisions may determine the minimum heating rates achievable in shallow all-optical or magnetic atom traps operating at low temperature and high density.

  • Received 19 March 1999

DOI:https://doi.org/10.1103/PhysRevA.60.R29

©1999 American Physical Society

Authors & Affiliations

S. Bali, K. M. O’Hara, M. E. Gehm, S. R. Granade, and J. E. Thomas

  • Physics Department, Duke University, Durham, North Carolina 27708-0305

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Vol. 60, Iss. 1 — July 1999

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