# The semi-classical energy of open Nambu-Goto strings

May 25, 2016

We compute semi-classical corrections to the energy of rotating Nambu-Goto strings, using methods from quantum field theory on curved space-times. We find that the energy density diverges in a non-integrable way near the boundaries. Regularizing these divergences with boundary counterterms, we find the Regge intercept $a = 1 + \frac{D-2}{24}$ for $D$ dimensional target space.

open access link
Phys. Rev. D 97, 066028 (2018)

@article{Zahn:2016bam,
author = "Zahn, Jochen",
title = "{Semiclassical energy of open Nambu-Goto strings}",
journal = "Phys. Rev.",
volume = "D97",
year = "2018",
number = "6",
pages = "066028",
doi = "10.1103/PhysRevD.97.066028",
eprint = "1605.07928",
archivePrefix = "arXiv",
primaryClass = "hep-th",
SLACcitation = "%%CITATION = ARXIV:1605.07928;%%"
}

Keywords:

locally covariant quantum field theory, string theory