Superstring Gravitational Wave Backgrounds with Spacetime Supersymmetry
High Energy Physics - Theory
2009-10-07 v3 Astrophysics
General Relativity and Quantum Cosmology
Abstract
We analyse the stringy gravitational wave background based on the current algebra . We determine its exact spectrum and construct the modular invariant vacuum energy. The corresponding N=1 extension is also constructed. The algebra is again mapped to free bosons and fermions and we show that this background has N=4 (N=2) unbroken spacetime supersymmetry in the type II (heterotic case).
Cite
@article{arxiv.hep-th/9404114,
title = {Superstring Gravitational Wave Backgrounds with Spacetime Supersymmetry},
author = {E. Kiritsis and C. Kounnas and D. Luest},
journal= {arXiv preprint arXiv:hep-th/9404114},
year = {2009}
}
Comments
14 pages, CERN-TH.7218/94, HUN-IEP-94/5, LPTENS-94/10 (references updated)