ar X iv : a to m - p h / 95 10 00 4 v 1 1 8 O ct 1 99 5 Introduction to light forces , atom cooling , and atom trapping . Craig Savage

ar X iv : a to m - p h / 96 04 00 1 v 2 2 4 M ar 1 99 7 An Atom Laser Based on Raman Transitions

In this paper we present an atom laser scheme using a Raman transition for the output coupling of atoms. A beam of thermal atoms (bosons) in a metastable atomic state is pumped into a multimode atomic cavity. This cavity is coupled through spontaneous emission to another cavity for the atomic ground state. Above a certain threshold pumping rate a large number of atoms build up in the lowest ene...

ar X iv : a to m - p h / 96 05 00 9 v 1 2 4 M ay 1 99 6 Three - body recombination of ultra - cold atoms to a weakly bound s level

We discuss three-body recombination of ultra-cold atoms to a weakly bound s level. In this case, characterized by large and positive scattering length a for pair interaction, we find a repulsive effective potential for three-body collisions , which strongly reduces the recombination probability and makes simple Jastrow-like approaches absolutely inadequate. In the zero temperature limit we obta...

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ar X iv : a to m - p h / 96 04 00 4 v 1 1 9 A pr 1 99 6 Evanescent wave diffraction of multi - level atoms

Diffraction of multi-level atoms by an evanescent wave reflective diffraction grating is modeled by numerically solving the time-dependent Schrödinger equation. We are able to explain the diffraction observed in experiments with metastable Neon. This is not possible using a two-level atom model. The multi-level model predicts sensitive dependence of diffraction on the laser polarization. For pu...

ar X iv : q ua nt - p h / 03 10 10 3 v 1 1 5 O ct 2 00 3 Dynamical symmetries and well - localized hydrogenic wave packets ∗

A new method for constructing of composite coherent states of the hydrogen atom, based on the dynamical group approach and various schemes of reduction to subgroups, is presented. A wide class of well-localized (Gaussian) hydrogenic wave packets for circular and elliptic orbits is found using the saddle-point method.