# Cosmic F- and D-strings

@article{Copeland2003CosmicFA, title={Cosmic F- and D-strings}, author={Edmund J. Copeland and Robert C. Myers and Joseph Polchinski}, journal={Journal of High Energy Physics}, year={2003}, volume={2004}, pages={013-013} }

Macroscopic fundamental and Dirichlet strings have several potential instabilities: breakage, tachyon decays, and confinement by axion domain walls. We investigate the conditions under which metastable strings can exist, and we find that such strings are present in many models. There are various possibilities, the most notable being a network of (p,q) strings. Cosmic strings give a potentially large window into string physics.

## 387 Citations

Collisions of cosmic F- and D-strings

- Physics, Mathematics
- 2005

Recent work suggests that fundamental and Dirichlet strings, and their (p,q) bound states, may be observed as cosmic strings. The evolution of cosmic string networks, and therefore their…

P-term strings and semi-local strings

- Physics
- 2007

P-term potentials can give rise to Nielsen-Olesen or semi-local cosmic strings. We present a general analysis of these cosmic strings where we derive the Bogomol'nyi equations and field profiles for…

Cosmic Strings with Small Tension

- Mathematics
- 2009

We describe cosmic F--term strings with exponentially small tension which are D3 branes wrapped on deformed $A_3$ singularities. We show that brane instanton effects which can be calculated after a…

Collisions of Cosmic Fand D-strings

- Physics
- 2004

Recent work suggests that fundamental and Dirichlet strings, and their (p, q) bound states, may be observed as cosmic strings. The evolution of cosmic string networks, and therefore their…

Heterotic Cosmic Strings

- Mathematics
- 2006

We show that all three conditions for the cosmological relevance of heterotic cosmic strings, the right tension, stability and a production mechanism at the end of inflation, can be met in the…

Interactions of cosmic superstrings

- Physics
- 2007

We develop methods by which cosmic superstring interactions can be studied in detail. These include the reconnection probability and emission of radiation such as gravitons or small string loops.…

Cosmic strings and superstrings

- PhysicsProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
- 2010

Cosmic strings are predicted by many field-theory models, and may have been formed at a symmetry-breaking transition early in the history of the universe, such as that associated with grand…

String vertex operators and cosmic strings

- Physics
- 2011

We construct complete sets of (open and closed string) covariant coherent state and mass eigenstate vertex operators in bosonic string theory. This construction can be used to study the evolution of…

## References

SHOWING 1-10 OF 104 REFERENCES

Collisions of cosmic F- and D-strings

- Physics, Mathematics
- 2005

Recent work suggests that fundamental and Dirichlet strings, and their (p,q) bound states, may be observed as cosmic strings. The evolution of cosmic string networks, and therefore their…

Topology of cosmic domains and strings

- Physics
- 1976

The possible domain structures which can arise in the universe in a spontaneously broken gauge theory are studied. It is shown that the formation of domain wall, strings or monopoles depends on the…

Cosmic strings and domain walls in models with Goldstone and pseudo Goldstone bosons

- Physics
- 1982

Topological vacuum structures are investigated in models with spontaneous breaking of exact and approximate global symmetries. The cosmological evolution of the structure is discussed. A spontaneous…

Cosmic Strings and Other Topological Defects

- Physics
- 1985

Preface 1. Introduction 2. Phase transitions in the early universe 3. Topological defects 4. String field theory 5. Superconducting strings 6. String dynamics 7. String gravity 8. String interactions…

Formation and evolution of cosmic D strings

- Physics
- 2004

We study the formation of D and F cosmic strings in D-brane annihilation after brane inflation. We show that D string formation by quantum de Sitter fluctuations is severely suppressed, due to…

Stability of D1-strings Inside a D3-brane

- Physics
- 2004

Within the tachyon condensation approach, we find that a D(p−2)-brane is stable inside Dp-branes when the bulk is compactified. It is a codimension-2 soliton of the Dp-brane action with coupling to…

Numerical simulations of string networks in the Abelian-Higgs model

- Physics
- 1998

We present the results of a field theory simulation of networks of strings in the Abelian-Higgs model. From a random initial configuration the resulting vortex tangle approaches a self-similar regime…

D-term strings

- Physics
- 2004

We study the embedding of cosmic strings, related to the Abrikosov-Nielsen-Olesen vortex solution, into d = 4, N = 1 supergravity. We find that the local cosmic string solution which saturates the…