Dynamical projection of atoms to Feshbach molecules at strong coupling
Mesoscale and Nanoscale Physics
2007-05-23 v1 Soft Condensed Matter
Atomic Physics
Abstract
The dynamical atom/molecule projection, recently used to probe fermion pairing, is fast compared to collective fermion times, but slow on the Feshbach resonance width scale. Theory of detuning-induced dynamics of molecules coupled to resonantly associating atom pairs, employing a time-dependent many-body Green's function approach, is presented. An exact solution is found, predicting a 1/3 power law for molecule production efficiency at fast sweep. The results for - and p-wave resonances are obtained and compared. The predicted production efficiency agrees with experimental observations for both condensed and incoherent molecules away from saturation.
Keywords
Cite
@article{arxiv.cond-mat/0506323,
title = {Dynamical projection of atoms to Feshbach molecules at strong coupling},
author = {R. A. Barankov and L. S. Levitov},
journal= {arXiv preprint arXiv:cond-mat/0506323},
year = {2007}
}
Comments
5 pages, 1 figure