Analysis of g_2 for the cold-collision frequency shift in the hydrogen condensate experiments
arXiv:cond-mat/0009371 · doi:10.1088/0953-4075/34/23/311
Abstract
We compute an approximate set of longitudinal quasiparticle modes for a hydrogen condensate as produced in the MIT experiments. An expansion in quasiparticles using a simple one-dimensional Bogoliubov picture shows however that at the high temperatures (\approx 44muK) and in the very shallow trap employed (omega_z = 2π\times 10.2Hz) the contribution to the density from the quasiparticles is about 20% of that from the condensate mode, leading to an effective $ g_2(x,x) which varies between 1 and 3 depending on the position in the condensate.
Revised version with corrections, which do not significantly affect conclusions. Should be read in conjunction with the new paper cond-mat/0108451. 10 pages J Phys B latex plus 3 postscript figures
References in corpus (4)
Cited by in corpus (7)
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