Probing bound states of D-branes

Details Probing bound states of D-branes Probing bound states of D-branes

1996-10-16

arxiv.org/abs/hep-th/9610125v2

Nucl.Phys. B499 (1997) 283-297

Physics

High Energy Physics

High Energy Physics - Theory

Minor changes, misprints corrected, two refrences added, 19 pages, Latex

Scientific paper

10.1016/S0550-3213(97)00344-1

A zero-brane is used to probe non-threshold BPS bound states of (p, p+2,p+4)-branes. At long distances the stringy calculation agrees with the supergravity calculations. The supergravity description is given, using the interpretation of the D=8 dyonic membrane as the bound state of a two-brane inside a four-brane. We investigate the short distance structure of these bound states, compute the phase shift of the scattered zero-brane and find the bound states characteristic size. It is found that there should be a supersymmetric solution of type IIa supergravity, describing a bound state of a zero-brane and two orthogonal two-brane, all inside a four-brane , with an additional unbound zero-brane. We comment on the relationship between p-branes and (p-2)-branes.

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