Inhomogeneous state of few-fermion superfluids

The few-fermion atomic gas is an ideal setting to explore inhomogeneous superfluid pairing analogous to the Larkin-Ovchinnikov state. Two up and one down-spin atom is the minimal configuration that displays an inhomogeneous pairing density whereas imbalanced systems containing more fermions present...

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Bibliographic Details
Published inarXiv.org
Main Authors Bugnion, P O, Lofthouse, J A, Conduit, G J
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 06.08.2013
Subjects
Fermions
Fluids
Inhomogeneity
Physics - Quantum Gases
Physics - Quantum Physics
Physics - Strongly Correlated Electrons
Superfluidity
Topology
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Summary:The few-fermion atomic gas is an ideal setting to explore inhomogeneous superfluid pairing analogous to the Larkin-Ovchinnikov state. Two up and one down-spin atom is the minimal configuration that displays an inhomogeneous pairing density whereas imbalanced systems containing more fermions present a more complex pairing topology. With more than eight atoms trapped the system approaches the macroscopic superfluid limit. An oblate trap with a central barrier offers a direct experimental probe of pairing inhomogeneity.
ISSN:2331-8422
DOI:10.48550/arxiv.1305.3717