The kinetic and interaction energies of a trapped Bose gas: Beyond the mean field
| dc.creator | Cherny, A. Yu. | |
| dc.creator | Shanenko, A. A. | |
| dc.date | 2001-05-17 | |
| dc.date | 2001-11-30 | |
| dc.date.accessioned | 2026-07-07T02:41:27Z | |
| dc.date.available | 2026-07-07T02:41:27Z | |
| dc.description | The kinetic and interaction energies of a three-dimensional dilute ground-state Bose gas confined in a trap are calculated beyond a mean-field treatment. They are found to depend on the pairwise interaction trough two characteristic lengths: the first, a, is the well-known scattering length and the second, b, is related to the latter by b=a-λd a/dλwith λbeing the coupling constant. Numerical estimations show that the pairwise interaction energy of a dilute gas of alkali atoms in a trap is negative (in spite of the positive scattering length); its absolute value is found by about the order of magnitude larger than that of the mean-field interaction energy that corresponds to the last term in the Gross-Pitaevskii functional. | |
| dc.description | 5 pages, REVTeX, 1 figure inserted | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0105339 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0105339 | |
| dc.identifier | Phys. Lett. A 293, No 5-6, 287 (2002). | |
| dc.identifier | doi:10.1016/S0375-9601(02)00017-8 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/17750 | |
| dc.subject | Statistical Mechanics | |
| dc.title | The kinetic and interaction energies of a trapped Bose gas: Beyond the mean field | |
| dc.type | text |