Heat Capacity of a Strongly Interacting Fermi Gas
Top Cited Papers
- 25 February 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 307 (5713) , 1296-1299
- https://doi.org/10.1126/science.1109220
Abstract
We have measured the heat capacity of an optically trapped, strongly interacting Fermi gas of atoms. A precise addition of energy to the gas is followed by single-parameter thermometry, which determines the empirical temperature parameter 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 temperatures. The theory calibrates the empirical temperature parameter, yields excellent agreement with the data, and predicts the onset of superfluidity at the observed transition point.Keywords
All Related Versions
This publication has 32 references indexed in Scilit:
- Quantitative Comparison between Theoretical Predictions and Experimental Results for the BCS-BEC CrossoverPhysical Review Letters, 2004
- Collisions and expansion of an ultracold dilute Fermi gasEurophysics Letters, 2004
- Nature of superfluidity in ultracold Fermi gases near Feshbach resonancesPhysical Review A, 2004
- Collective Excitations of a Degenerate Gas at the BEC-BCS CrossoverPhysical Review Letters, 2004
- Crossover from a Molecular Bose-Einstein Condensate to a Degenerate Fermi GasPhysical Review Letters, 2004
- Optically Trapped Fermi GasesAmerican Scientist, 2004
- Observation of a Strongly Interacting Degenerate Fermi Gas of AtomsScience, 2002
- Expansion of an Interacting Fermi GasPhysical Review Letters, 2002
- Superconducting phase coherence in the presence of a pseudogap: Relation to specific heat, tunneling, and vortex core spectroscopiesPhysical Review B, 2001
- On the Bose-Einstein CondensationPhysical Review B, 1938