The BCS-BEC Crossover

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Abstract

This chapter presents the crossover from the Bardeen–Cooper–Schrieffer (BCS) state of weakly correlated pairs of fermions to the Bose–Einstein condensation (BEC) of diatomic molecules in the atomic Fermi gas. Our aim is to provide a pedagogical review of the BCS–BEC crossover, with an emphasis on the basic concepts, particularly those that are not generally known or are difficult to find in the literature. We shall not attempt to give an exhaustive survey of current research in the limited space here; where possible, we will direct the reader to more extensive reviews.
Original languageEnglish
Title of host publicationQuantum Gas Experiments
Subtitle of host publicationExploring Many-Body States
EditorsPaivi Torma, Klaus Sengstock
Place of PublicationLondon UK
PublisherImperial College Press
Chapter9
Pages179-197
Number of pages19
Volume3
Edition1
ISBN (Print)9781783264742
DOIs
Publication statusPublished - 2014
Externally publishedYes

Publication series

NameCold Atoms
PublisherImperial College Press
Volume3
ISSN (Print)2045-9734

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