Dual strings and magnetohydrodynamics

Details Dual strings and magnetohydrodynamics Dual strings and magnetohydrodynamics

1995-09-06

arxiv.org/abs/hep-th/9509023v6

Phys.Lett. B366 (1996) 117-123

Physics

High Energy Physics

High Energy Physics - Theory

10 pages. LaTex. A minor correction has been made

Scientific paper

10.1016/0370-2693(95)01383-0

We investigate whether dual strings could be solutions of the magnetohydrodynamics equations in the limit of infinite conductivity. We find that the induction equation is satisfied, and we discuss the Navier-Stokes equation (without viscosity) with the Lorentz force included. We argue that the dual string equations (with a non-universal maximum velocity) should describe the large scale motion of narrow magnetic flux tubes, because of a large reparametrization (gauge) invariance of the magnetic and electric string fields. It is shown that the energy-momentum tensor for the dual string can be reinterpreted as an energy-momentum tensor for magnetohydrodynamics, provided certain conditions are satisfied. We also give a brief discussion of the case when magnetic monopoles are included, and indicate how this can lead to a non-relativistic "electrohydrodynamics" picture of confinement.

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