J. Tempere et al., EVAPORATIVE COOLING OF AN IDEAL BOSE-EINSTEIN GAS IN AN ANHARMONIC PARABOLIC CONFINEMENT POTENTIAL, Solid state communications, 102(9), 1997, pp. 691-695
We present a model to describe evaporative cooling of a gas of bosons,
confined by an anisotropic parabolic potential. The quantum statistic
s of the model is treated exactly. Among the possible evaporation mech
anisms, explicit results are obtained for the case of (i) truncation o
f the energy distribution and (ii) spatially selective evaporation. In
both examples, the temperature is studied as a function of the number
of particles and the temperature drop per evaporated particle is disc
ussed. (C) 1997 Elsevier Science Ltd.