Evaluation of heating effects on atoms trapped in an optical trap
Abstract
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, Phys. Rev. Lett. 83, 4987 (1999)], 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.
- Publication:
-
Physical Review A
- Pub Date:
- April 2000
- DOI:
- 10.1103/PhysRevA.61.045801
- arXiv:
- arXiv:quant-ph/9910056
- Bibcode:
- 2000PhRvA..61d5801G
- Keywords:
-
- 42.50.Ct;
- 32.80.Pj;
- 32.80.Lg;
- 42.50.Lc;
- Quantum description of interaction of light and matter;
- related experiments;
- Optical cooling of atoms;
- trapping;
- Mechanical effects of light on atoms molecules and ions;
- Quantum fluctuations quantum noise and quantum jumps;
- Quantum Physics
- E-Print:
- 3 pages TeX plus 4 postscript files