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arXiv · 1305.6961

Fluid Mechanics of Strings

Daniel Schubring·Vitaly Vanchurin
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Abstract

We consider conserved currents in an interacting network of one-dimensional objects (or strings). Singular currents localized on a single string are considered in general, and a formal procedure for coarse-graining over many strings is developed. This procedure is applied to strings described by the Nambu-Goto action such as cosmic strings. In addition to conserved currents corresponding to the energy-momentum tensor, we consider an antisymmetric tensor of conserved currents related to the string tangent vector. Under the assumption of local equilibrium we derive a complete set of hydrodynamic equations for strings.

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Daniel Schubring, Vitaly Vanchurin. 2013-06-02. Fluid Mechanics of Strings. https://doi.org/10.1103/physrevd.88.083531

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