Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-02-24
Nucl.Phys.B587:147-178,2000
Physics
High Energy Physics
High Energy Physics - Theory
41 pages, LaTeX, 1 figure. Added two references
Scientific paper
10.1016/S0550-3213(00)00501-0
It has been conjectured that at the stationary point of the tachyon potential for the D-brane-anti-D-brane pair or for the non-BPS D-brane of superstring theories, the negative energy density cancels the brane tensions. We study this conjecture using a Wess-Zumino-Witten-like open superstring field theory free of contact term divergences and recently shown to give 60% of the vacuum energy by condensation of the tachyon field alone. While the action is non-polynomial, the multiscalar tachyon potential to any fixed level involves only a finite number of interactions. We compute this potential to level three, obtaining 85% of the expected vacuum energy, a result consistent with convergence that can also be viewed as a successful test of the string field theory. The resulting effective tachyon potential is bounded below and has two degenerate global minima. We calculate the energy density of the kink solution interpolating between these minima finding good agreement with the tension of the D-brane of one lower dimension.
Berkovits Nathan
Sen Ashoke
Zwiebach Barton
No associations
LandOfFree
Tachyon Condensation in Superstring Field Theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Tachyon Condensation in Superstring Field Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tachyon Condensation in Superstring Field Theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-226589