Normal ordering and boundary conditions for fermionic string coordinates
高能物理 - 理论
2008-11-26 v2
摘要
We build up normal ordered products for fermionic open string coordinates consistent with boundary conditions. The results are obtained considering the presence of antisymmetric tensor fields. We find a discontinuity of the normal ordered products at string endpoints even in the absence of the background. We discuss how the energy momentum tensor also changes at the world-sheet boundary in such a way that the central charge keeps the standard value at string end points.
引用
@article{arxiv.hep-th/0602212,
title = {Normal ordering and boundary conditions for fermionic string coordinates},
author = {Nelson R. F. Braga and Hector L. Carrion and Cresus F. L. Godinho},
journal= {arXiv preprint arXiv:hep-th/0602212},
year = {2008}
}
备注
In this revised version we clarify the issue of consistency between supersymmetry and boundary conditions and stress the fact that we are considering flat space. we also add two more references