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Interior gap superfluidity | | W Vincent Liu
; Frank Wilczek
; | | Date: |
31 Jan 2003 | | Journal: | Phys Rev Lett, 90 (4), 047002 | | Abstract: | We 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 | | Services: | Forum | Review | Favorites | |
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