Spectroscopy of Superfluid Pairing in Atomic Fermi Gases
arXiv:cond-mat/0404116 · doi:10.1103/PhysRevLett.93.080401
Abstract
We study the dynamic structure factor for density and spin within the crossover from BCS superfluidity of atomic fermions to the Bose-Einstein condensation of molecules. Both structure factors are experimentally accessible via Bragg spectroscopy, and allow for the identification of the pairing mechanism: the spin structure factor allows for the determination of the two particle gap, while the collective sound mode in the density structure reveals the superfluid state.
arXiv comment4 pages, 3 figures
References in corpus (13)
- Observation of resonance condensation of fermionic atom pairs
- Condensation of Pairs of Fermionic Atoms Near a Feshbach Resonance
- Transition from a strongly interacting 1D superfluid to a Mott insulator
- Observation of Bose-Einstein Condensation of Molecules
- Resonance superfluidity in a quantum degenerate Fermi gas
- The BCS-BEC Crossover in a Gas of Fermi Atoms with a Feshbach Resonance
- Excitation of phonons in a Bose-Einstein condensate by light scattering
- High-temperature superfluidity of fermionic atoms in optical lattices
- The Excitation Spectrum of a Bose-Einstein Condensate
- Superfluidity and collective modes in a uniform gas of Fermi atoms with a Feshbach resonance
- Laser probing of atomic Cooper pairs
- Evolution from BCS superconductivity to Bose-Einstein condensation: Current correlation function in the broken-symmetry phase
- Dynamic structure factor of a superfluid Fermi gas
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- Establishing the Presence of Coherence in Atomic Fermi Superfluids: Spin-Flip and Spin-Preserving Bragg Scattering at Finite Temperatures
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- Spectral weight suppression in response functions of ultracold fermion-boson mixtures