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Heat Capacity of a Strongly-Interacting Fermi Gas | J. Kinast
; A. Turlapov
; J. E. Thomas
; | Date: |
10 Sep 2004 | Subject: | Other | cond-mat.other | Abstract: | We report on the measurement of the heat capacity for an optically-trapped, strongly-interacting Fermi gas of atoms. In the experiments, a precise input of energy to the gas is followed by single-parameter thermometry. The thermometry determines a temperature parameter $ ilde{T}$ from the best fit of a Thomas-Fermi distribution with a fixed Fermi radius to the spatial density of the cloud. At $ ilde{T}=0.33$, we observe a transition between two patterns of behavior: For $ ilde{T}=0.33-2.15$, we find that the heat capacity closely corresponds to that of a trapped normal Fermi gas of atoms with increased mass. At low temperatures $ ilde{T}=0.04-0.33$, the heat capacity clearly deviates from normal Fermi gas behavior. | Source: | arXiv, cond-mat/0409283 | Services: | Forum | Review | PDF | Favorites |
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