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Título : Stringy cosmic strings in matter coupled N = 2, d = 4 supergravity
Autor : Bergshoeff, Eric A., Hartong, Jelle, Hübscher, Mechthild, Ortín Miguel, Tomás
Palabras clave : p-branes
Extended supersymmetry
String theory and cosmic strings
Fecha de publicación : 2008
Editor: Institute of Physics Publishing
Citación : Journal of High Energy Physics 05: 033 (2007)
Resumen: 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.
Descripción : 34 páginas.-- El PDF es el artículo en su versión pre-print.-- arXiv: 0711.0857v2
Versión del editor:
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2008/05/033
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