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Boundary states for moving D-branes
We determine the boundary state for both the NS-NS and R-R sectors of
superstring theory. We show how they are modified under a boost. The boosted
boundary state is then used for computing the interaction of two D-branes
moving with constant velocity reproducing with a completely different method a
recent calculation by Bachas.Comment: 10 pages, LaTeX, no figures; Eqs. (47) and (48) correcte