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arXiv · hep-th/9803195

A finite cutoff on the string worldsheet?

Vipul Periwal·Øyvind Tafjord
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Abstract

D-brane backgrounds are specified in closed string theories by holes with appropriate mixed Dirichlet and Neumann boundary conditions on the string worldsheet. As presently stated, the prescription defining D-brane backgrounds is such that the Einstein equation is not equivalent to the condition for scale invariance on the string worldsheet. A modified D-brane prescription is found, that leads to the desired equivalence, while preserving all known D-brane lore. A possible interpretation is that the worldsheet cutoff is finite. Possible connections to recent work of Maldacena and Strominger, and Gopakumar and Vafa are suggested.

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Vipul Periwal, Øyvind Tafjord. 1999-05-18. A finite cutoff on the string worldsheet?. https://doi.org/10.1103/physrevd.60.046004

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