Hydrodynamics of liquids of arbitrarily curved flux lines and vortex loops

We derive a hydrodynamic model for a liquid of arbitrarily curved flux lines and vortex loops using the mapping of the vortex liquid onto a liquid of relativistic charged quantum bosons in 2 + 1 dimensions recently suggested by Tesanovic and by Sudbo and collaborators. The loops in the flux-line system correspond to particle-antiparticle fluctuations in the bosons. We explicitly incorporate the externally applied magnetic field which in the boson model corresponds to a chemical potential associated with the conserved charge density of the bosons. We propose this model as a convenient and physically appealing starting point for studying the properties of the vortex liquid.