Radio Frequency Spectroscopy of a Strongly Imbalanced Feshbach-Resonant Fermi Gas
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Radio Frequency Spectroscopy of a Strongly Imbalanced Feshbach-Resonant Fermi Gas
| Title: | Radio Frequency Spectroscopy of a Strongly Imbalanced Feshbach-Resonant Fermi Gas |
| Author: |
Veillette, Martin; Moon, Eun Gook; Lamacraft, Austen; Radzihovsky, Leo; Sachdev, Subir; Sheehy, D. E.
Note: Order does not necessarily reflect citation order of authors. |
| Citation: | Veillette, Martin, Eun Gook Moon, Austen Lamacraft, Leo Radzihovsky, Subir Sachdev, and D. E. Sheehy. 2008. Radio frequency spectroscopy of a strongly imbalanced Feshbach-resonant Fermi gas. Physical Review A 78(3): 033614. |
| Full Text & Related Files: |
0803.2517v2.pdf (326.5Kb; PDF) 
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| Abstract: | A sufficiently large species imbalance (polarization) in a two-component Feshbach resonant Fermi gas is known to drive the system into its normal state. We show that the resulting strongly-interacting state is a conventional Fermi liquid, that is, however, strongly renormalized by pairing fluctuations. Using a controlled 1/N expansion, we calculate the properties of this state with a particular emphasis on the atomic spectral function, the momentum distribution functions displaying the Migdal discontinuity, and the radio frequency (RF) spectrum. We discuss the latter in the light of the recent experiments of Schunck et al. (Science 316, 867 (2007)) on such a resonant Fermi gas, and show that the observations are consistent with a conventional, but strongly renormalized Fermi-liquid picture. |
| Published Version: | doi:10.1103/PhysRevA.78.033614 |
| Other Sources: | http://arxiv.org/abs/0803.2517 |
| Terms of Use: | This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP |
| Citable link to this page: | http://nrs.harvard.edu/urn-3:HUL.InstRepos:7470490 |
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Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
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