Interaction of moving D-branes on orbifolds
Faheem Hussain, Roberto Iengo, Carmen N\'u\~nez, Claudio A. Scrucca
TL;DR
This paper investigates the interactions between moving D-branes on orbifolds using boundary state formalism, revealing force characteristics and specific boundary state couplings in various orbifold compactifications.
Contribution
It introduces a method to analyze velocity-dependent forces between D-branes on orbifolds and identifies special boundary states coupled to specific supergravity multiplets.
Findings
Velocity dependence of D-brane interactions characterized
Boundary states coupled only to graviton and vector in Z_3 orbifold
Different force behaviors identified in various orbifold cases
Abstract
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 Z_3 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-Nordstr\"{o}m configuration. We also discuss other cases including .
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