Probing ultracold Fermi atoms with a single ion
Sherkunov, Y., Muzykantskii, B., d'Ambrumenil, N. and Simons, B. D.. (2009) Probing ultracold Fermi atoms with a single ion. Physical Review A, Vol.79 (No.2). ISSN 1050-2947Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevA.79.023604
We show that the recently proposed ionic microscope setup [Kollath , Phys. Rev. A 76, 063602 (2007)] could be adapted to measure the local single-particle energy distribution of a degenerate Fermi gas in situ with the resolution on the nanometer scale. We study an ion held in a Paul trap in an atomic Fermi gas and compute the two-photon Raman photo-association rate of the ion and an atom. We show that, as a function of the detunings between the frequencies of the two incident lasers and energies in the atom-ion system, the photoassociation rate directly measures the single-particle energy distribution in the Fermi gas around the ion. We describe an experiment to measure the photoassociation rate of a trapped ion and argue that, as the position of the ion can be scanned through the Fermi gas, this experiment directly probes the local energy and spin-state distribution of the Fermi gas.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||Physical Review A|
|Publisher:||American Physical Society|
|Official Date:||February 2009|
|Number of Pages:||5|
|Access rights to Published version:||Restricted or Subscription Access|
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