Excitations in correlated superfluids near a continuous transition into a supersolid

Details Excitations in correlated superfluids near a continuous transition into a supersolid Excitations in correlated superfluids near a continuous transition into a supersolid

2005-12-30

arxiv.org/abs/cond-mat/0512717v4

Phys. Rev. Lett. 96, 105303 (2006)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures, published version

Scientific paper

10.1103/PhysRevLett.96.105303

We study a superfluid on a lattice close to a transition into a supersolid phase and show that a uniform superflow in the homogeneous superfluid can drive the roton gap to zero. This leads to supersolid order around the vortex core in the superfluid, with the size of the modulated pattern around the core being related to the bulk superfluid density and roton gap. We also study the electronic tunneling density of states for a uniform superconductor near a phase transition into a supersolid phase. Implications are considered for strongly correlated superconductors.

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