Five-Loop Critical Temperature Shift in Weakly Interacting Homogeneous Bose-Einstein Condensate
Condensed Matter
2009-11-07 v3
Abstract
Using variational perturbation theory, we calculate the shift in the critical temperature T_c up to five loops to lowest order in the scattering length a and find Delta T_c/T_c^{(0)} approx (1.14\pm0.11)an^{1/3}, where n is the particle density. Our result is lower than the latest Monte Carlo result (1.32\pm0.02)an^{1/3}.
Keywords
Cite
@article{arxiv.cond-mat/0210162,
title = {Five-Loop Critical Temperature Shift in Weakly Interacting Homogeneous Bose-Einstein Condensate},
author = {H. Kleinert},
journal= {arXiv preprint arXiv:cond-mat/0210162},
year = {2009}
}
Comments
Author Information under http://www.physik.fu-berlin.de/~kleinert/institution.html . Latest update of paper (including all PS fonts) at http://www.physik.fu-berlin.de/~kleinert/320