Inter-Brane Potential and the Decay of a non-BPS-D-brane to Closed Strings
نویسنده
چکیده
We calculate the potential for Dp − Dp pair and show that the coincident Dp −Dp system has (11 − p) tachyonic modes, with (9 − p) of them due to radiative corrections. We propose that the decay width of an unstable nonBPS-Dp-brane to closed strings is given by the imaginary part of the one-loop contribution to the effective potential of the open string tachyon mode.
منابع مشابه
Fundamental strings and NS5-branes from unstable D-branes in supergravity
By using the non-supersymmetric p-brane solutions delocalized in arbitrary number of transverse directions in type II supergravities, we show how they can be regarded as interpolating solutions between unstable Dp-branes (a non-BPS D-brane or a pair of coincident D-brane-antiD-brane) and fundamental strings and also between unstable Dp-branes and NS5-branes. We also show that some of these solu...
متن کاملSolitonic D-branes and brane annihilation
We point out some intriguing analogies between field theoretic solitons (topological defects) and D-branes. Annihilating soliton-antisoliton pairs can produce stable solitons of lower dimensionality. Solitons that localize massless gauge fields in their world volume automatically imply the existence of open flux tubes ending on them and closed flux tubes propagating in the bulk. We discuss some...
متن کاملFinite Temperature Systems of Brane-Antibrane Pairs and Non-BPS D-branes
We investigate the thermodynamic properties of D-brane−anti-D-brane pairs and non-BPS D-branes on the basis of boundary string field theory. We calculate the finite temperature effective potential of N pairs of D-brane−anti-D-brane in the non-compact background and in the toroidal background. In the noncompact background case, a phase transition occurs slightly below the Hagedorn temperature, a...
متن کاملComments on D-brane Dynamics Near NS5-Branes
We study the properties of a D-brane in the presence of k NS5 branes. The Dirac-Born-Infeld action describing the dynamics of this D-brane is very similar to that of a non-BPS D-brane in ten dimensions. As the D-brane approaches the fivebranes, its equation of state approaches that of a pressureless fluid. In non-BPS D-brane case this is considered as an evidence for the decay of the D-brane in...
متن کاملZZ Brane Decay in D Dimensions
In this paper we consider the ZZ brane decay in a D-dimensional background with a linear dilaton and a Liouville potential switched on. We mainly calculate the closed string emission rate during the decay process. For the case of a spacelike dilaton we find a similar Hagedorn behavior, in the closed string UV region, with the brane decay in the usual 26d and 2d bosonic string theory. This means...
متن کامل