Worldsheet instantons and a null string limit of Born-Infeld theory

G. A. Goldin, N. E. Mavromatos, R. J. Szabo

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


For a superstring theory in four spacetime dimensions, we propose a modification of the Born-Infeld action that possesses a well-defined tensionless limit. We interpret this as describing the effective target space dynamics of null strings on a D3-brane. We argue that such a modification can be induced by nonperturbative contributions from instantons in the worldsheet s-model describing string propagation on the brane. © 2007 Springer-Verlag / Società Italiana di Fisica.

Original languageEnglish
Pages (from-to)667-672
Number of pages6
JournalEuropean Physical Journal C
Issue number4
Publication statusPublished - Feb 2008


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