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Probing the dynamic structure factor of a neutral Fermi superfluid along the BCS-BEC crossover using atomic impurity qubits

Abstract:

We study an impurity atom trapped by an anharmonic potential, immersed within a cold atomic Fermi gas with attractive interactions that realizes the crossover from a Bardeen-Cooper-Schrieffer (BCS) superfluid to a Bose-Einstein condensate (BEC). Considering the qubit comprising the lowest two vibrational energy eigenstates of the impurity, we demonstrate that its dynamics probes the equilibrium density fluctuations encoded in the dynamic structure factor of the superfluid. Observing the impur...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevA.94.063618

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
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Institution:
University of Oxford
Oxford college:
Keble College
Role:
Author
More from this funder
Funding agency for:
Jaksch, D
Grant:
QuProCS No. 641277
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review A Journal website
Volume:
94
Issue:
6
Article number:
063618
Publication date:
2016-01-01
Acceptance date:
2016-11-18
DOI:
EISSN:
2469-9934
ISSN:
2469-9926
Source identifiers:
664159
Pubs id:
pubs:664159
UUID:
uuid:b760c961-f2b0-42f1-bd75-e45262f90574
Local pid:
pubs:664159
Deposit date:
2016-12-05

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