Interaction of moving D-branes on orbifolds

FAHEEM HUSSAIN; ROBERTO IENGO; CARMEN A. NÚÑEZ; CLAUDIO SCRUCCA

PHYSICS LETTERS B

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 1997 vol. 409 p. 101 - 108

0370-2693

We use the boundary state formalism to study the interaction of two moving identical D-branes in the Type II superstring theory compactified on orbifolds. By computing the velocity dependence of the amplitude in the limit of large separation we can identify the nature of the different forces between the branes. In particular, in the Z3 orbifold case we find a boundary state which is coupled only to the N = 2 graviton multiplet containing just a graviton and a vector like in the extremal Reissner-Nordström configuration. We also discuss other cases including T4/Z2.