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Stringy cosmic strings in matter coupled N = 2, d = 4 supergravity

Eric A. Bergshoeff1, Jelle Hartong1, Mechthild Hübscher2 and Tomás Ortín2

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We extend the system of ungauged N = 2, d = 4 supergravity coupled to vector multiplets and hypermultiplets with 2-form potentials. The maximal number of 2-form potentials that one may introduce is equal to the number of isometries of either the special Kähler or quaternionic Kähler sigma model. We show that the local supersymmetry algebra can be realized on the 2-form potentials. These 2-forms couple electrically to strings which we refer to as stringy cosmic strings. The 1/2 BPS bosonic world-sheet actions for these strings are constructed and we discuss the properties of the 1/2 BPS stringy cosmic string solutions.

Keywords

p-branes

Extended Supersymmetry

String theory and cosmic strings

 

E-print Number: 0711.0857

Cited: by |

Refers: to

PACS

04.65.+e Supergravity

11.27.+d Extended classical solutions; cosmic strings, domain walls, texture

11.30.Pb Supersymmetry

02.10.-v Logic, set theory, and algebra

Subjects

Mathematical physics

Gravitation and cosmology

Particle physics and field theory

Dates

Issue 05 (May 2008)

Received 15 January 2008, accepted for publication 3 May 2008

Published 9 May 2008



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