Long-range mediated interactions in a mixed-dimensional system

We present a mixed-dimensional atomic gas system to unambiguously detect and systematically probe mediated interactions. In our scheme, fermionic atoms are confined in two parallel planes and interact via exchange of elementary excitations in a three-dimensional background gas. This interaction give...

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Bibliographic Details
Published in:	Physical review. A, Atomic, molecular, and optical physics Vol. 95; no. 4
Main Authors:	Suchet, Daniel M, Wu, Zhigang, Chevy, Frédéric M, Bruun, Georg M.
Format:	Journal Article
Language:	English
Published:	American Physical Society 28-04-2017
Subjects:	Atomic Physics Physics
Online Access:	Get full text
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Summary:	We present a mixed-dimensional atomic gas system to unambiguously detect and systematically probe mediated interactions. In our scheme, fermionic atoms are confined in two parallel planes and interact via exchange of elementary excitations in a three-dimensional background gas. This interaction gives rise to a frequency shift of the out-of-phase dipole oscillations of the two clouds, which we calculate using a strong-coupling theory taking the two-body mixed-dimensional scattering into account exactly. The shift is shown to be easily measurable for strong interactions and can be used as a probe for mediated interactions.
ISSN:	1050-2947 1094-1622
DOI:	10.1103/PhysRevA.95.043643