We consider, by means of the variational approximation (VA) and direct numerical
simulations of the Gross-Pitaevskii (GP) equation, the dynamics of two-dimensional (2D) and …

By performing high-resolution two-color photoassociation spectroscopy, we have
successfully determined the binding energies of several of the last bound states of the …

Bose-Einstein condensates (BEC's) have recently been the subject of considerable study as
possible analog models of general relativity. In particular it was shown that the propagation …

We develop a consistent perturbation theory in quantum fluctuations around the classical
evolution of a system of interacting bosons. The zero-order approximation gives the classical …

We perform extensive magnetic Feshbach spectroscopy of an ultracold mixture of fermionic
K 40 and bosonic Rb 87 atoms. The magnetic-field locations of 13 interspecies resonances …

We precisely measured the binding energy (ε bind) of a molecular state near the Feshbach
resonance in a 85 Rb Bose-Einstein condensate (BEC). Rapid magnetic-field pulses …

Motivated by the recent development of the Feshbach technique, we studied the ground and
low-lying excited states of attractive Bose-Einstein condensates on a one-dimensional ring …

We describe experimental setups for producing large Bose-Einstein condensates of Na 23
and Rb 87⁠. In both, a high-flux thermal atomic beam is decelerated by a Zeeman slower …

Analog models of gravity have been motivated by the possibility of investigating phenomena
not readily accessible in their cosmological counterparts. In this paper, we investigate the …

We theoretically investigate the use of Bessel light beams generated using axicons for
creating optical dipole traps for cold atoms and atomic waveguiding. Zeroth-order Bessel …