One-Dimensional Fermions as Two-Dimensional Droplets Via Chern-Simons Theory

Details One-Dimensional Fermions as Two-Dimensional Droplets Via Chern-Simons Theory One-Dimensional Fermions as Two-Dimensional Droplets Via Chern-Simons Theory

1992-02-04

arxiv.org/abs/hep-th/9202012v1

Nucl.Phys. B388 (1992) 700-714

Physics

High Energy Physics

High Energy Physics - Theory

19 pages (2 figures are not included)

Scientific paper

10.1016/0550-3213(92)90560-X

Based on the observation that a particle motion in one dimension maps to a two-dimensional motion of a charged particle in a uniform magnetic field, constrained in the lowest Landau level, we formulate a system of one-dimen- sional nonrelativistic fermions by using a Chern-Simons field theory in 2+1 dimensions. Using a hydrodynamical formulation we obtain a two-dimensional droplet picture of one-dimensional fermions. The dynamics involved is that of the boundary between a uniform density of particles and vortices. We use the sharp boundary approximation. In the case of well separated boundaries we derive the one-dimensional collective field Hamiltonian. Symmetries of the theory are also discussed as properties of curves in two dimensions.

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