The D-instanton and other supersymmetric D-branes in IIB plane-wave string theory

Details The D-instanton and other supersymmetric D-branes in IIB plane-wave string theory The D-instanton and other supersymmetric D-branes in IIB plane-wave string theory

2002-11-13

arxiv.org/abs/hep-th/0211122v2

Ann.Phys.307:147-194,2003

Physics

High Energy Physics

High Energy Physics - Theory

Error in eq 4.17 corrected, other typos corrected, references amended and some conventions changed

Scientific paper

10.1016/S0003-4916(03)00082-4

A class of D-branes for the type IIB plane-wave background is considered that preserve half the dynamical supersymmetries of the light-cone gauge. The D-branes of this type are the euclidean (or instantonic) (0,0), (0,4) and (4,0) branes (where (r,s) denotes a brane oriented with r axes in the first four directions transverse to the +,- light-cone and s axes in the second four directions). Corresponding lorentzian D-branes are (+,-;0,0), (+,-;0,4) and (+,-;4,0). These are constructed in two ways. The first uses a boundary state formalism which implements appropriate fermionic gluing conditions and the second is based on a direct quantisation of the open strings ending on the branes. In distinction to the D-branes considered earlier these have massless world-volume fermions but do not possess kinematical supersymmetries. Cylinder diagrams describing the overlap between a pair of boundary states displaced by some distance are evaluated. The open-string description of this system involves mode frequencies that are, in general, given by irrational solutions to transcendental equations. The closed-string and open-string descriptions are shown to be equivalent by a nontrivial implementation of the S modular transformation. A classical description of the D-instanton (the (0,0) case) in light-cone gauge is also given.

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