Wednesday, January 9, 2013

1301.1370 (Brandon P. Ruzic et al.)

Quantum Defect Theory for High Partial Wave Cold Collisions    [PDF]

Brandon P. Ruzic, Chris H. Greene, John L. Bohn
We extend Multichannel Quantum Defect Theory (MQDT) to ultracold collisions involving high partial wave quantum numbers $L$. This requires a careful standardization of the MQDT reference wave functions at long range to ensure their linear independence. To illustrate the simplicity and accuracy of the resulting theory, we perform a comprehensive calculation of $L\le 2$ Fano-Feshbach resonances in the range 0-1000 G for the scattering of $^{40}$K + $^{87}$Rb in their lowest hyperfine states.
View original: http://arxiv.org/abs/1301.1370

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