The semi-classical energy of closed Nambu-Goto strings
High Energy Physics - Theory
2019-11-20 v4 Mathematical Physics
math.MP
Abstract
We compute semi-classical corrections to the energy of rotating closed Nambu-Goto strings. We confirm the results obtained by means of the Polchinski-Strominger action. We also show that in this semi-classical approximation, the spectrum of physical excitations contains modes that are unphysical non-perturbatively, i.e., to which no physical excitations of the covariantly quantized Nambu-Goto string correspond.
Keywords
Cite
@article{arxiv.1610.02813,
title = {The semi-classical energy of closed Nambu-Goto strings},
author = {Marek Kozoň and Jochen Zahn},
journal= {arXiv preprint arXiv:1610.02813},
year = {2019}
}
Comments
17 pages. v3: Major corrections, discussion of the elliptic string and the excitation spectrum added. v4: Published version