In 1978, while I was a postdoctoral fellow at MIT, I read a paper by Art Ashkin (1978) in
which he described how one might slow down an atomic beam of sodium using the radiation …

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 …

We have observed evaporative cooling of magnetically trapped sodium atoms. A novel
technique, rf induced evaporation, was used to reduce the temperature by a factor of 12 and …

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 …

We have observed optically induced Feshbach resonances in a cold (< 1 mK) sodium vapor.
The optical coupling of the ground and excited-state potentials changes the scattering …

Two-photon photoassociation of colliding ultracold 7 Li atoms is used to probe the Σ u+ 3 (a)
ground state of 7 L i 2. The binding energy of the least-bound state of this triplet potential, υ …

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 …

High resolution photoassociation spectra of colliding ultracold trapped atoms contain
detailed information about ground and excited state interactions. We calculate the …

We observe a shape resonance in the scattering of two ultracold Rb 87 atoms, causing the
colliding atoms to form a long-living compound system inside an l= 2 centrifugal barrier. Its …