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). doi:10.1103/PhysRevA.79.023604 ISSN 1050-2947.

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Abstract

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
ISSN:	1050-2947
Official Date:	February 2009
Dates:	Date Event February 2009 Published
Volume:	Vol.79
Number:	No.2
Number of Pages:	5
DOI:	10.1103/PhysRevA.79.023604
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Grant number:	EPSRC-EP/065135/1

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