Calculation of the efficiencies and phase shifts associated with an adiabatic transfer atom interferometer
Quantum and Semiclassical Optics Journal of the European Optical Society Part B IOP Publishing 8:3 (1996) 641
Direct simulation of evaporative cooling
Journal of Physics B: Atomic, Molecular and Optical Physics 29:8 (1996)
Abstract:
We have simulated the evaporative cooling of trapped atoms using a very efficient method originally introduced for the study of molecular gas dynamics. This straightforward and intuitive method allows the dynamics of the evaporative cooling process to be studied and requires fewer simplifications and assumptions than other methods. In particular, the method is not restricted to distributions close to equilibrium and therefore it can model accurately rapid forced evaporative cooling, which is an important technique for cooling trapped atoms. We present the results of simulations for forced evaporative cooling in one, two and three dimensions.High-density trapping of cesium atoms in a dark magneto-optical trap.
Phys Rev A 53:3 (1996) 1702-1714
Direct simulation of evaporative cooling
Technical Digest - European Quantum Electronics Conference (1996) 57
Abstract:
Evaporative cooling is a simple and very effective way of cooling atoms in a magnetic trap. A modelling method for this technique was developed by considering the physics of gas flow. Using this method, cross-dimensional mixing in homogeneous and inhomogeneous gases and continuous cuts in two and three dimensions are studied. The two-dimensional cut model is similar to the evaporative process in a TOP trap because atoms in this trap are removed in the basis of their radial positions. Initially, a two dimension cut retains atoms in the trap but atom loss becomes greater than with a three dimension cut because the velocity component along z is relatively hot and gives up more energetic atoms.Modeling evaporative cooling in phase space using a direct simulation of the Monte Carlo method
Conference on Quantum Electronics and Laser Science (QELS) - Technical Digest Series 9 (1996) 228-229