Confinement vs Deconfinement of Cooper Pairs in One-Dimensional Spin-3/2 Fermionic Cold Atoms

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dc.creatorCapponi, S.
dc.creatorRoux, G.
dc.creatorAzaria, P.
dc.creatorBoulat, E.
dc.creatorLecheminant, P.
dc.date2006-12-18
dc.date2007-03-23
dc.date.accessioned2026-07-07T07:53:09Z
dc.date.available2026-07-07T07:53:09Z
dc.descriptionThe phase diagram of spin-3/2 fermionic cold atoms trapped in a one-dimensional optical lattice is investigated at quarter filling (one atom per site) by means of large-scale numerical simulations. In full agreement with a recent low-energy approach, we find two phases with confined and deconfined Cooper pairs separated by an Ising quantum phase transition. The leading instability in the confined phase is an atomic-density wave with subdominant quartet superfluid instability made of four fermions. Finally, we reveal the existence of a bond-ordered Mott insulating phase in some part of the repulsive regime.
dc.descriptionPublished version with minor changes; 4 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0612456
dc.identifierhttp://arxiv.org/abs/cond-mat/0612456
dc.identifierPhys. Rev. B 75, 100503(R) (2007)
dc.identifierdoi:10.1103/PhysRevB.75.100503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126144
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleConfinement vs Deconfinement of Cooper Pairs in One-Dimensional Spin-3/2 Fermionic Cold Atoms
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