Cosmic Strings with Small Tension
arXiv:0906.2587
Abstract
We describe cosmic F--term strings with exponentially small tension which are D3 branes wrapped on deformed singularities. We show that brane instanton effects which can be calculated after a geometric transition give rise to an exponentially small volume for the node on which the D3 branes wrap leading to a string with small tension. We generalize our description to the case of non--Abelian cosmic strings and argue that these strings are stable against monopole--anti monopole pair creation.
17 pages in phyzzx.tex, numerous minor changes and corrections, 5 references added; v3 stability argument clarified, minor changes
References in corpus (27)
- Cosmic strings
- Towards Inflation in String Theory
- Cosmic F- and D-strings
- The Inflationary Brane-Antibrane Universe
- Superstrings and Topological Strings at Large N
- Semilocal and Electroweak Strings
- Gravitational wave bursts from cusps and kinks on cosmic strings
- Spacetime Instanton Corrections in 4D String Vacua - The Seesaw Mechanism for D-Brane Models
- Mirror Symmetry, D-Branes and Counting Holomorphic Discs
- Vortex Strings and Four-Dimensional Gauge Dynamics
- Hybrid Inflation from Supergravity D Terms
- D-brane Instantons in Type II String Theory
- Observational Constraints on Cosmic String Production During Brane Inflation
- TASI Lectures on Solitons
- D3/D7 Brane Inflation and Semilocal Strings
- Geometric Transitions and N=1 Quiver Theories
- Non-Abelian Vortices of Higher Winding Numbers
- D-term strings
- On the moduli space of semilocal strings and lumps
- Universal Reconnection of Non-Abelian Cosmic Strings
- Geometric Transitions and Dynamical SUSY Breaking
- Instanton Induced Open String Superpotentials and Branes at Singularities
- Introduction to Cosmic F- and D-Strings
- String production after angled brane inflation
- On the Stability of Non-Abelian Semi-local Vortices
- Calabi-Yau Manifolds and the Standard Model
- P-term Inflation on D-Branes