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Superstring Gravitational Wave Backgrounds with Spacetime Supersymmetry

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arxiv hep-th/9404114 v3 pith:N2GVBW23 submitted 1994-04-19 hep-th astro-phgr-qc

E. Kiritsis , C. Kounnas , D. Luest This is my paper · ORCID
classification hep-thastro-phgr-qc
keywords algebrabackgroundgravitationalspacetimesupersymmetrywaveanalysebackgrounds
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abstract

We analyse the stringy gravitational wave background based on the current algebra $E^{c}_{2}$. 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).

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  1. Non-relativistic quantum strings from gauged WZW models

    hep-th 2025-05 conditional novelty 7.0 of 10

    A chiral null gauging of Nappi-Witten WZW models yields a closed string with a Gomis-Ooguri-like spectrum, but with different left- and right-moving sectors.

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