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31 March 2023
  » pubmed » pmid12570449

 Article overview

Interior gap superfluidity
W Vincent Liu ; Frank Wilczek ;
Date 31 Jan 2003
Journal Phys Rev Lett, 90 (4), 047002
AbstractWe propose a new state of matter in which the pairing interactions carve out a gap within the interior of a large Fermi ball, while the exterior surface remains gapless. This defines a system which contains both a superfluid and a normal Fermi liquid simultaneously, with both gapped and gapless quasiparticle excitations. The universality class of this state can be realized at weak coupling. We predict that a cold mixture of two species of fermionic atoms with different mass will exhibit this state. For electrons in appropriate solids, it would define a material that is simultaneously superconducting and metallic.
Source PubMed, pmid12570449
Other source [GID 474744] cond-mat/0208052
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