Evaluation of heating effects on atoms trapped in an optical trap

Details Evaluation of heating effects on atoms trapped in an optical trap Evaluation of heating effects on atoms trapped in an optical trap

1999-10-14

arxiv.org/abs/quant-ph/9910056v1

Physics

Quantum Physics

3 pages TeX plus 4 postscript files

Scientific paper

10.1103/PhysRevA.61.045801

We solve a stochastic master equation based on the theory of Savard et al. [T.A. Savard, K.M. O'Hara and J.E. Thomas, Phys. Rev. A 56, R1095 (1997)] for heating arising from fluctuations in the trapping laser intensity. We compare with recent experiments of Ye et. al. [J. Ye, D.W. Vernooy and H.J. Kimble, Trapping of single atoms in cavity QED, quant-ph/9908007, Phys. Rev. Lett. (1999 in press)], and find good agreement with the experimental measurements of the distribution of trap occupancy times. The major cause of trap loss arises from the broadening of the energy distribution of the trapped atom, rather than the mean heating rate, which is a very much smaller effect.

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