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Technique for measuring correlation functions in interacting gases

Technique for measuring correlation functions in interacting gases
Technique for measuring correlation functions in interacting gases
We propose an experimental method that allows for scaling of all the diagonal correlation functions (such as the density and pair correlation function) during the expansion of harmonically trapped cold atomic gases with arbitrary interactions even if the trapping is anisotropic. To do this we require that the interaction be tunable by the use of a Feshbach resonance and that the trapping potential can be manipulated independently along the axial and radial directions. This permits a much greater accuracy and resolution in measurements of correlation functions. We explain the explicit control procedure, outline the scaling ansatz that we use, and briefly discuss the systems where it could be applied as well as possible experimental obstacles to its implementation.
1050-2947
023618-023622
Lobo, C.
cde7843a-c00b-4242-a8cd-1abb2dfe0703
Gensemer, S.
f7cade16-5eaa-4148-a420-4b1aa715fa67
Lobo, C.
cde7843a-c00b-4242-a8cd-1abb2dfe0703
Gensemer, S.
f7cade16-5eaa-4148-a420-4b1aa715fa67

Lobo, C. and Gensemer, S. (2008) Technique for measuring correlation functions in interacting gases. Physical Review A, 78 (2), 023618-023622. (doi:10.1103/PhysRevA.78.023618).

Record type: Article

Abstract

We propose an experimental method that allows for scaling of all the diagonal correlation functions (such as the density and pair correlation function) during the expansion of harmonically trapped cold atomic gases with arbitrary interactions even if the trapping is anisotropic. To do this we require that the interaction be tunable by the use of a Feshbach resonance and that the trapping potential can be manipulated independently along the axial and radial directions. This permits a much greater accuracy and resolution in measurements of correlation functions. We explain the explicit control procedure, outline the scaling ansatz that we use, and briefly discuss the systems where it could be applied as well as possible experimental obstacles to its implementation.

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Published date: 11 August 2008

Identifiers

Local EPrints ID: 156297
URI: http://eprints.soton.ac.uk/id/eprint/156297
ISSN: 1050-2947
PURE UUID: ef5cf196-98af-4bf5-8523-a311e803bbbd
ORCID for C. Lobo: ORCID iD orcid.org/0000-0001-7060-3905

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Date deposited: 01 Jun 2010 08:42
Last modified: 26 Nov 2019 01:42

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