Vortex matter in the charged Bose liquid at absolute zero

Details Vortex matter in the charged Bose liquid at absolute zero Vortex matter in the charged Bose liquid at absolute zero

2004-11-11

arxiv.org/abs/cond-mat/0411298v3

Phys. Rev. B 71, 132511 (2005)

Physics

Condensed Matter

Superconductivity

4 pages, 4 figures, references updated

Scientific paper

10.1103/PhysRevB.71.132511

The Gross-Pitaevskii-type equation is solved for the charge Bose liquid in the external magnetic field at zero temperature. There is a vortex lattice with locally broken charge neutrality. The boson density is modulated in real space and each vortex is charged. Remarkably, there is no upper critical field at zero temperature, so the density of single flux-quantum vortices monotonously increases with the magnetic field up to B=infinity and no indication of a phase transition. The size of each vortex core decreases as about 1/sqrt(B) keeping the system globally charge neutral. If bosons are composed of two fermions, a phase transition to a spin-polarized Fermi liquid at some magnetic field larger than the pair-breaking field is predicted.

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