Normal state of highly polarized Fermi gases: Full many-body treatment
| dc.creator | Combescot, R. | |
| dc.creator | Giraud, S. | |
| dc.date | 2008-04-16 | |
| dc.date.accessioned | 2026-07-07T12:38:36Z | |
| dc.date.available | 2026-07-07T12:38:36Z | |
| dc.description | We consider a single \down atom within a Fermi sea of \up atoms. We elucidate by a full many-body analysis the quite mysterious agreement between Monte-Carlo results and approximate calculations taking only into account single particle-hole excitations. It results from a nearly perfect destructive interference of the contributions of states with more than one particle-hole pair. This is linked to the remarkable efficiency of the expansion in powers of hole wavevectors, the lowest order leading to perfect interference. Going up to two particle-hole pairs gives an essentially perfect agreement with known exact results. Hence our treatment amounts to an exact solution of this problem. | |
| dc.description | 5 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/0804.2638 | |
| dc.identifier | http://arxiv.org/abs/0804.2638 | |
| dc.identifier | Phys. Rev. Lett. 101, 050404 (2008) | |
| dc.identifier | doi:10.1103/PhysRevLett.101.050404 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/218815 | |
| dc.subject | Soft Condensed Matter | |
| dc.subject | Statistical Mechanics | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Normal state of highly polarized Fermi gases: Full many-body treatment | |
| dc.type | text |