Fermion Exchange between D-instantons

Details Fermion Exchange between D-instantons Fermion Exchange between D-instantons

1997-01-15

arxiv.org/abs/hep-th/9701075v2

Phys.Lett. B404 (1997) 33-40

Physics

High Energy Physics

High Energy Physics - Theory

13 pp, harvmac, typos corrected and references added

Scientific paper

10.1016/S0370-2693(97)00555-8

We define fermionic collective coordinates for type-IIB Dirichlet instantons and discuss some effects of the associated fermionic zero modes within the dilute gas framework. We show that the standard rules for clustering of zero modes in the dilute limit, and the fermion-exchange interactions follow from world-sheet Ward identities. Fermion exchange is strongly attractive at string-scale distances, which makes the short-distance Hagedorn singularity between instantons and anti-instantons even stronger.

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