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

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

Research output: Contribution to journalArticlepeer-review

62 Scopus citations


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 [Formula Presented] 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.

Original languageEnglish (US)
Pages (from-to)R29-R32
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number1
StatePublished - 1999

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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