Publications [#248519] of John E. Thomas

Papers Published

1. O’Hara, KM; Gehm, ME; Granade, SR; Thomas, JE, Scaling laws for evaporative cooling in time-dependent optical traps, Phys. Rev. A, vol. 64 no. 5 (2001), pp. 051403(R), American Physical Society (APS), ISSN 1050-2947 [Gateway.cgi], [doi]
   (last updated on 2026/01/14)

   Abstract:
   We derive scaling laws for the number of atoms, collision rate, and phase-space density as a function of trap depth for evaporative cooling in an adiabadically lowered optical trap. The results are in excellent agreement with a Boltzmann equation model and show that very large increases in phase-space density can be obtained without excessive slowing of the evaporation rate. Predictions are in reasonable agreement with a recent experiment that achieves Bose-Einstein condensation by evaporation in an optical trap. We also discuss evaporation of fermionic mixtures and explain why Pauli blocking does not strongly inhibit cooling. © 2001 The American Physical Society.