hep-th/0506138 A practical model for cosmic (p,q) superstrings.
نویسنده
چکیده
We propose a model with a U(1)A×U(1)B gauge symmetry which contains topological strings carrying magnetic flux under each of the U(1)s. By calculating the tension of the first few low energy strings we show that bound states, containing flux under each of the U(1)s, are stable against decay to their constituents of lower winding number. As the model contains only Abelian gauge symmetries this model provides a pragmatic solution to the numerical modelling of cosmic-superstrings. Whilst these defects do not satisfy a BPS bound we argue that they bear sufficient similarities to warrant such a study. § email: [email protected]
منابع مشابه
Introduction to Cosmic F-and D-strings
In these lectures I discuss the possibility that superstrings of cosmic length might exist and be observable. I first review the original idea of cosmic strings arising as gauge theory solitons, and discuss in particular their network properties and the observational bounds that rule out cosmic strings as the principal origin of structure in our universe. I then consider cosmic superstrings, in...
متن کاملar X iv : h ep - t h / 05 12 06 2 v 1 6 D ec 2 00 5 A Tutorial on Links between Cosmic String Theory and Superstring Theory ∗
Cosmic superstrings are introduced to non-experts. First D-branes and (p, q) strings are discussed. Then we explain how tachyon condensation in the early universe may have produced F, D and (p, q) strings. Warped geometries which can render horizon sized superstrings relatively light are discussed. Various warped geometries including the deformed conifold in the Klebanov-Strassler geometry are ...
متن کاملar X iv : h ep - t h / 05 12 06 2 v 2 4 J ul 2 00 6 A Tutorial on Links between Cosmic String Theory and Superstring Theory ∗
Cosmic superstrings are introduced to non-experts. First D-branes and (p, q) strings are discussed. Then we explain how tachyon condensation in the early universe may have produced F, D and (p, q) strings. Warped geometries which can render horizon sized superstrings relatively light are discussed. Various warped geometries including the deformed conifold in the Klebanov-Strassler geometry are ...
متن کاملStringy effect of the holographic correspondence for Dp-brane backgrounds
Based on the holographic conjecture for superstrings on Dp-brane backgrounds and the dual (p + 1)-dimensional gauge theory (0 ≤ p ≤ 4) given in hep-th/0308024 and hep-th/0405203, we continue the study of superstring amplitudes including string higher modes (n 6= 0). We give a prediction to the two-point functions of operators with large Rcharge J . The effect of stringy modes do not appear as t...
متن کامل2 00 3 Remarks on the Warped Deformed Conifold ∗
We assemble a few remarks on the supergravity solution of hep-th/0007191, whose UV asymptotic form was previously found in hep-th/0002159. First, by normalizing the R-R fluxes, we compare the logarithmic flow of couplings in supergravity with that in field theory, and find exact agreement. We also write the 3-form field strength G3 = F3 − τH3 present in the solution in a manifestly SO(4) invari...
متن کامل