Photoassociation is the process in which two colliding atoms absorb a photon to form an
excited molecule. The development of laser-cooling techniques for producing gases at …

The authors review progress in understanding the nature of atomic collisions occurring at
temperatures ranging from the millidegrees Kelvin to the nanodegrees Kelvin regime. The …

I Introduction.-1 Review of Quantum Mechanics.-1.1 Time-Dependent Perturbation Theory.-
1.2 The Rabi Two-Level Problem.-1.2. 1 Light Shifts.-1.2. 2 The Dressed Atom Picture.-1.2. 3 …

There is growing interest in states of matter with topological order. These are characterized
by highly stable ground states robust to perturbations that preserve the topology, and which …

The theory of atom-molecule collisions is one of the basic fields in chemi cal physics. Its
most challenging part-the dynamics of chemical reactions-is as yet unresolved, but is …

We study the photoassociative collisional loss of laser-cooled Rb atoms from a far-off
resonance optical dipole force atom trap. We obtain a well-resolved photoassociation …

The new spectroscopic technique of photoassociation of ultracold atoms is reviewed, with an
emphasis on connecting this area to traditional bound-state molecular spectroscopy. In …

The collisional relaxation of atomic excited state polarization and the associated optical line
broadening and shifts are reviewed both theoretically and experimentally. Calculations of …

Progress on research in the field of molecules at cold and ultracold temperatures is reported
in this review. It covers extensively the experimental methods to produce, detect and …

We report a preliminary value for the zero magnetic field Na 2 S (f= 1, m=− 1)+ Na 2 S (f= 1,
m=− 1) scattering length, a 1,− 1. This parameter describes the low-energy elastic two-body …