Effective Action and Tension Renormalization for Cosmic and Fundamental Strings

Details Effective Action and Tension Renormalization for Cosmic and Fundamental Strings Effective Action and Tension Renormalization for Cosmic and Fundamental Strings

Mar 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pb...repts..98b&link_type=abstract

Technical Report, PB98-149990; IHES/P/98/19 ; Dept. of d'Astrophysique Relativiste et de Cosmologie

Astronomy and Astrophysics

Astrophysics

Strings, Cosmology, String Theory, Renormalization Group Methods, Divergence, Gravitational Fields, Infrared Radiation, Tensor Analysis, Ultraviolet Radiation, Dirac Equation

Scientific paper

We derive the effective action for classical strings coupled to diatonic, gravitational, and anionic fields. We show how to use this effective action for (1) renormalizing the string tension, (2) linking ultraviolet divergences to the infrared (long-range) interaction between strings, (3) bringing additional light on the special cancellations that occur for fundamental strings, and (4) pointing out the limitations of Dirac's celebrated field-energy approach to renormalization.

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