Tachyon condensation in unbalanced D-anti D system

Details Tachyon condensation in unbalanced D-anti D system Tachyon condensation in unbalanced D-anti D system

2006-01-09

arxiv.org/abs/hep-th/0601050v3

Prog.Theor.Phys.115:1093-1109,2006

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, minor corrections, to appear in Prog. Theor. Phys

Scientific paper

10.1143/PTP.115.1093

The tachyon condensation is studied in asymmetric D-anti D systems. Taking a system of two pairs of D5-anti D5 in type IIB superstring theory in the background of large N D5-branes, we show that one BPS D1-brane comes out after the condensation. It is also seen that the BPS D1-brane feels no force from the background D5-branes. We also show that the inclusion of the fluctuation fields gives an expected Dirac-Born-Infeld (DBI) action of the resultant D1-brane. On the other hand, in the case of one pair of D5-anti D5 in the same background, we show that the resultant BPS D3-brane experiences attractive force from the background D5-branes.

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