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Quasicondensation in Two-Dimensional Fermi Gases.
- Source :
-
Physical review letters [Phys Rev Lett] 2015 Dec 11; Vol. 115 (24), pp. 240401. Date of Electronic Publication: 2015 Dec 09. - Publication Year :
- 2015
-
Abstract
- In this paper we follow the analysis and protocols of recent experiments, combined with simple theory, to arrive at a physical understanding of quasi-condensation in two dimensional Fermi gases. A key signature of quasi-condensation, which contains aspects of Berezinskiĭ-Kosterlitz-Thouless behavior, is a strong zero momentum peak in the pair momentum distribution. Importantly, this peak emerges at a reasonably well defined onset temperature. The resulting phase diagram, pair momentum distribution, and algebraic power law decay are compatible with recent experiments throughout the continuum from BEC to BCS.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 115
- Issue :
- 24
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 26705613
- Full Text :
- https://doi.org/10.1103/PhysRevLett.115.240401