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Heat Capacity of a Strongly-Interacting Fermi Gas | | J. Kinast
; A. Turlapov
; J. E. Thomas
; Qijin Chen
; Jelena Stajic
; K. Levin
; | | Date: |
3 Feb 2005 | | Journal: | J Kinast, A Turlapov, JE Thomas, Chen, Stajic, & K Levin, Science, 27 January 2005 (10.1126/science.1109220) | | Subject: | Other | cond-mat.other | | Abstract: | We have measured the heat capacity of an optically-trapped, strongly-interacting Fermi gas of atoms. A precise input of energy to the gas is followed by single-parameter thermometry, which determines the empirical temperature parameter $ ilde{T}$ of the gas cloud. Our measurements reveal a clear transition in the heat capacity. The energy and the spatial profile of the gas are computed using a theory of the crossover from Fermi to Bose superfluids at finite temperature. The theory calibrates $ ilde{T}$, yields excellent agreement with the data, and predicts the onset of superfluidity at the observed transition point. | | Source: | arXiv, cond-mat/0502087 | | Services: | Forum | Review | PDF | Favorites | |
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