SolitonicD-branes and brane annihilation
- 5 February 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 67 (4) , 046002
- https://doi.org/10.1103/physrevd.67.046002
Abstract
We point out some intriguing analogies between field-theoretic solitons (topological defects) and D-branes. Annihilating soliton-antisoliton pairs can produce stable solitons of lower dimensionality. Solitons that localize massless gauge fields in their world-volume automatically imply the existence of open flux tubes ending on them and closed flux tubes propagating in the bulk. We discuss some aspects of this localization on explicit examples of unstable wall-antiwall systems. The annihilation of these walls can be described in terms of tachyon condensation which renders the world-volume gauge field nondynamical. During this condensation the world-volume gauge fields (open string states) are resonantly excited. These can later decay into closed strings, or get squeezed into a network of flux tubes similar to a network of cosmic strings formed at a cosmological phase transition. Although, as in the D-brane case, perturbatively one can find exact time-dependent solutions, when the energy of the system stays localized in the plane of the original soliton, such solutions are unstable with respect to decay into open and closed string states. Thus, when a pair of such walls annihilates, the energy is carried away (at least) by closed string excitations (“glueballs”), which are the lowest-energy excitations about the bulk vacuum. Suggested analogies can be useful for the understanding of the complicated D-brane dynamics and of the production of topological defects and reheating during brane collision in the early universe.Keywords
All Related Versions
This publication has 48 references indexed in Scilit:
- FIELD THEORY OF TACHYON MATTERModern Physics Letters A, 2002
- Tachyon MatterJournal of High Energy Physics, 2002
- Rolling TachyonJournal of High Energy Physics, 2002
- Inflation frombrane annihilationPhysical Review D, 2001
- Universality of the tachyon potentialJournal of High Energy Physics, 1999
- Non-conservation of global charges in the Brane Universe and baryogenesisPhysics Letters B, 1999
- Infrared hierarchy, thermal brane inflation and superstrings as superheavy dark matterPhysics Letters B, 1999
- Brane inflationPhysics Letters B, 1999
- Tachyon condensation on the brane antibrane systemJournal of High Energy Physics, 1998
- Stable non-BPS bound states of BPS D-branesJournal of High Energy Physics, 1998