Theory of photoemission-type experiment in the BCS-BEC crossover regime of a superfluid Fermi gas
Theory of photoemission-type experiment in the BCS-BEC crossover regime of a superfluid Fermi gas
We theoretically investigate the recent photoemission-type experiment on $^{40}$K Fermi gases done by JILA group. Including pairing fluctuations within a strong-coupling $T$-matrix theory, as well as effects of a harmonic trap within the local density approximation, we calculate photoemission spectra in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein condensation) crossover region. We show …