Skip to content

Superstring Gravitational Wave Backgrounds with Spacetime Supersymmetry

E. Kiritsis, C. Kounnas, D. Luest

hep-tharXiv:hep-th/9404114

Abstract

We analyse the stringy gravitational wave background based on the current algebra Ec2. 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).

Create a lesson