|Author||Platter, Lucas ♦ Ji, Chen ♦ Phillips, Daniel R.|
|Date of Submission||2008-08-08|
|Subject Domain (in DDC)||Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics|
|Subject Keyword||Condensed Matter - Other Condensed Matter ♦ Nuclear Theory ♦ physics:cond-mat ♦ physics:nucl-th|
|Abstract||A non-relativistic system of three identical particles will display a rich set of universal features known as Efimov physics if the scattering length a is much larger than the range l of the underlying two-body interaction. An appropriate effective theory facilitates the derivation of both results in the a goes to infinity limit and finite-l/a corrections to observables of interest. Here we use such an effective-theory treatment to consider the impact of corrections linear in the two-body effective range, r_s on the three-boson bound-state spectrum and recombination rate for a much greater than r_s . We do this by first deriving results appropriate to the strict limit a goes to infinity in coordinate space. We then extend these results to finite a using once-subtracted momentum-space integral equations. We also discuss the implications of our results for experiments that probe three-body recombination in Bose-Einstein condensates near a Feshbach resonance.|
|Learning Resource Type||Article|
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