Spacelike brane actions.
We derive effective actions for "spacelike branes" (S-branes) and find a solution describing the formation of fundamental strings in the rolling tachyon background. The S-brane action is a Dirac-Born-Infeld action for Euclidean world volumes defined in the context of time-dependent tachyon condensation of non-BPS (Bogomol'nyi-Prasad-Sommerfield) branes. It includes gauge fields and, in particular, a scalar field associated with translation along the time direction. We show that the BIon spike solutions constructed in this system correspond to the production of a confined electric flux tube (a fundamental string) at late time of the rolling tachyon.
Hashimoto
Koji
K
Institute of Physics, University of Tokyo, Komaba, Tokyo 153-8902, Japan. koji@hep1.c.u-tokyo.ac.jp
Ho
Pei-Ming
PM
Wang
John E
JE