Final-state effects in the radio frequency spectrum of strongly interacting fermions
arXiv:0712.1007 · doi:10.1103/PhysRevLett.101.060405
Abstract
We model the impact of final state interactions on the radio frequency spectrum of a strongly interacting two-component superfluid Fermi gas. In addition to a broad asymmetric peak coming from the break-up of Cooper pairs we find that, for appropriate parameters, one can observe a sharp symmetric "bound-bound" spectral line coming from the conversion of Cooper pairs in one channels to pairs/molecules in another.
4 pages, 4 figures
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- Quantum quench phase diagrams of an s-wave BCS-BEC condensate
- Enhanced paraconductivity-like fluctuations in the radio frequency spectra of ultracold Fermi atoms
- Radio frequency spectroscopy of a strongly imbalanced Feshbach-resonant Fermi gas
- Pseudogap phenomena in ultracold atomic Fermi gases
- Generic features of the spectrum of trapped polarized fermions
- Clock shifts in a Fermi gas interacting with a minority component: a soluble model
- Superfluidity in atomic Fermi gases
- Radio-frequency driving of an attractive Fermi gas in a one-dimensional optical lattice