Vortex matter, effective magnetic charges, and generalizations of the dipolar superfluidity concept in layered systems

• In the first part of this paper, we discuss electrodynamics of an excitonic condensate in a bilayer. We show that under certain conditions, the system has a dominant energy scale and is described by the effective electrodynamics with "planar magnetic charges." In the second part of the paper, we point out that a vortex liquid state in bilayer superconductors also possesses dipolar superfluid modes and establish equivalence mapping between this state and a dipolar excitonic condensate. We point out that a vortex liquid state in a N-layer superconductor possesses multiple topologically coupled dipolar superfluid modes and therefore represents a generalization of the dipolar superfluidity concept.

Nyckelord

spatially separated electrons

ii superconductors

phase-transitions

vortices

holes

fluctuations

coherence

diagram

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)