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A gauge theory for the 2+1 dimensional incompressible Euler equations
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A gauge theory for the 2+1 dimensional incompressible Euler equations
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We show that in two dimensions the incompressible Euler equations can be re-expressed in terms of an abelian gauge theory with a Chern-Simons term. The magnetic field corresponds to fluid vorticity and the electric field is the product of the vorticity and the gradient of the stream function. This picture can be extended to active scalar models, including the surface quasi-geostrophic equation. We examine the theory in the presence of a boundary and show that the Noether charge algebra is a Kac-Moody algebra. We argue that this symmetry is associated with the nodal lines of zero magnetic field.
Forward citations
Cited by 2 Pith papers
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The Schrödinger equation is locally equivalent to a gauge theory with one-form fields in 2+1D and two-form fields in 3+1D, with BF and Chern-Simons terms organizing electromagnetic couplings, anyons, Berry phases, and...
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The Schrodinger Equation as a Gauge Theory
Schrödinger equation is locally equivalent to a non-relativistic gauge theory via one-form or two-form gauge fields on the probability current, with global topology from phase winding quantization.
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