Overlapping branes in Mtheory
Abstract
We construct new supersymmetric solutions of D = 11 supergravity describing n orthogonally "overlapping" membranes and fivebranes for n = 2,…,8. Overlapping branes arise after separating intersecting branes in a direction transverse to all of the branes. The solutions, which generalize known intersecting brane solutions, preserve at least 2 ^{ n} of the supersymmetry. Each pairwise overlap involves a membrane overlapping a membrane in a 0brane, a fivebrane overlapping a fivebrane in a 3brane or a membrane overlapping a fivebrane in a string. After reducing n overlapping membranes to obtain n overlapping D2branes in D = 10, Tduality generates new overlapping Dbrane solutions in type IIA and type IIB string theory. Uplifting certain type IIA solutions leads to the D = 11 solutions. Some of the new solutions reduce to dilaton black holes in D = 4. Additionally, we present a D = 10 solution that describes two D5branes overlapping in a string. Tduality then generates further D = 10 solutions and uplifting one of the type IIA solutions gives a new D = 11 solution describing two fivebranes overlapping in a string.
 Publication:

Nuclear Physics B
 Pub Date:
 February 1996
 DOI:
 10.1016/05503213(96)004233
 arXiv:
 arXiv:hepth/9604179
 Bibcode:
 1996NuPhB.478..544G
 Keywords:

 High Energy Physics  Theory
 EPrint:
 21 pages (Harvmac b). A new discussion on solutions with four or more overlaps is presented. References added