Physical Spectra in String Theories --- BRST Operators and Similarity Transformations
High Energy Physics - Theory
2026-02-26 v1
Abstract
Several examples of similarity transformations connecting two string theories with different backgrounds are reviewed. We also discuss general structure behind the similarity transformations from the point of view of the topological conformal algebra and of the non-linear realization of gauge symmetry.
Keywords
Cite
@article{arxiv.hep-th/9512201,
title = {Physical Spectra in String Theories --- BRST Operators and Similarity Transformations},
author = {Mitsuhiro Kato},
journal= {arXiv preprint arXiv:hep-th/9512201},
year = {2026}
}
Comments
15 pages, latex, no figures, Invited talk given at the "International Symposium on BRS Symmetry" (Sep. 18--22, 1995, RIMS Kyoto)