Quantum Description for the Decay of NSNS Brane-Antibrane Systems

Abstract

The stringy description for the instabilities in the $RR$ charged $D_p-{\bar{D}}_p$ pairs is now well understood in terms of the open string tachyon condensation. The quantum interpretation presumably via the stringy description for the instabilities in the $NSNS$-charged $F1-\overline{F1}$ and $NS5-\overline{NS5}$ pairs in IIA/IIB theories, however, has not been established yet. This would be partly because of the absence (for the $F1-\overline{F1}$ case) or our relatively poor understanding (for the $NS5-\overline{NS5}$ case) of their worldvolume (gauge theory) dynamics. In the present work, using the well-known quantum description for instabilities in the $RR$-charged $D_p-{\bar{D}}_p$ systems and in the M-theory brane-antibrane systems and invoking appropriate string dualities, the stringy nature of the instabilities in the $NSNS$-charged $F1-\overline{F1}$ and $NS5-\overline{NS5}$ systems has been uncovered. For the annihilations to string vacua, the quantum, stringy interpretations are simple extensions of Sen's conjecture for those in $RR$-charged brane-antibrane systems.

22 pages, 4 eps figures, Latex, comments and references added

References in corpus (1)

• Delocalized Supergravity Solutions for Brane/Anti-brane Systems and their Bound States