منابع مشابه
DF-strings from D3D̄3 as Cosmic Strings
We study Dirac-Born-Infeld type effective field theory of a complex tachyon and U(1)×U(1) gauge fields describing a D3D̄3 system. Classical solutions of straight global and local DFstrings with quantized vorticity are found and are classified into two types by the asymptotic behavior of the tachyon amplitude. For sufficiently large radial distances, one has linearlygrowing tachyon amplitude and ...
متن کاملCosmic D- and DF-strings from D3D̄3: Black Strings and BPS Limit
We study Dand DF-strings in a D3D̄3 system in the context of Dirac-Born-Infeld type effective field theory. In the presence of an electric flux from a transverse direction, we discuss gravitating thick D-string solutions of a spatial manifold, S2 × R1, in which straight D-strings stretched along the R1 direction are attached to the south and north poles of the two-sphere. There is a horizon alon...
متن کاملCosmic D- and DF-strings from D3D̄3: Black Strings and BPS Bound
We study Dand DF-strings from D3D̄3 in the context of Dirac-Born-Infeld type effective field theory. In the presence of an electric flux from a transverse direction, gravitating thick D-string solutions form a spatial manifold, S2×R1, and straight D-strings stretched along the R1 direction are located at the south and north poles of the two-sphere. There is a horizon along its equator and then t...
متن کاملCosmic D-strings as Axionic D-term Strings
In this work we derive non-singular BPS string solutions from an action that captures the essential features of aD−brane-anti-D−brane system compactified to four dimensions. The model we consider is a supersymmetric abelian Higgs model with a D−term potential coupled to an axion-dilaton multiplet. The strings in question are axionic D−term strings which we identify with the D−strings of type II...
متن کاملCosmic Strings
Cosmic strings, a hot subject in the 1980’s and early 1990’s, lost its appeal when it was found that it leads to inconsistencies in the power spectrum of the measured cosmic microwave background temperature anisotropies. However, topological defects in general, and cosmic strings in particular, are deeply rooted in the framework of grand unified theories. Indeed, it was shown that cosmic string...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2006
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2006/04/012