String fluid from unstable D-branes

Citation
G. Gibbons et al., String fluid from unstable D-branes, NUCL PHYS B, 596(1-2), 2001, pp. 136-150
Citations number
36
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B
ISSN journal
0550-3213 → ACNP
Volume
596
Issue
1-2
Year of publication
2001
Pages
136 - 150
Database
ISI
SICI code
0550-3213(20010226)596:1-2<136:SFFUD>2.0.ZU;2-0
Abstract
We consider Sen's effective action for unstable D-branes, and study its cla ssical dynamics exactly. In the true vacuum, the Hamiltonian dynamics remai ns well-defined despite a vanishing action, and is that of massive relativi stic string fluid of freely moving electric Aux lines. The energy (tension) density equals the flux density in the local co-moving frame. Furthermore, a finite dual Lagrangian exists and is related to the Nielsen-Olesen field theory of "dual" strings, supplemented by a crucial constraint. We conclud e with discussion on the endpoint of tachyon condensation. (C) 2001 Elsevie r Science B.V. All rights reserved.