Pairing-gap, pseudo-gap, and no-gap phases in the radio-frequency spectra of a trapped unitary 6Li gas
arXiv:1102.2735 · doi:10.1103/PhysRevA.84.011608
Abstract
Radio frequency spectra of a trapped unitary 6Li gas are reported and analyzed in terms of a theoretical approach that includes both final-state and trap effects. Final-state effects play a crucial role in evidencing two main peaks both above and below the critical temperature Tc as being associated with two distinct phases that reside in different trap regions. These are the pairing-gap and pseudo-gap phases below Tc, which evolve into the pseudo-gap and no-gap phases above Tc. In this way, a long standing puzzle about the interpretation of rf spectra for 6Li in a trap is solved.
5 pages, 6 figures (final version)
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Cited by in corpus (7)
- A two-dimensional Fermi liquid with attractive interactions
- Pseudogap phenomena in ultracold atomic Fermi gases
- Strain induced superconductor-insulator transition on Lieb lattice
- Anomalous Behavior of Dark States in Quantum Gases of 6Li
- Pairing and radio-frequency spectroscopy in two-dimensional Fermi gases
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- Radio-frequency driving of an attractive Fermi gas in a one-dimensional optical lattice