Covariant Calculus for Effective String Theories

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A covariant calculus for the construction of effective string theories is developed. Effective string theory, describing quantum string-like excitations in arbitrary dimension, has in the past been constructed using the principles of conformal field theory, but not in a systematic way. Using the freedom of choice of field definition, a particular field definition is made in a systematic way to allow an explicit construction of effective string theories with manifest exact conformal symmetry. The impossibility of a manifestly invariant description of the Polchinski-Strominger Lagrangian is demonstrated and its meaning is explained.
13 pages

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High Energy Physics - Theory, High Energy Physics - Lattice

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http://salesiana.dossiersoluciones.com/handle/123456789/137824

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0709.1765
 http://arxiv.org/abs/0709.1765

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arXiv