363 citations · 1.1k across the 20 of their papers we have counts for
3 papers · 1 filter
Conformal invariance from non-conformal gravity
Krzysztof A. Meissner, Hermann Nicolai
We discuss the conditions under which classically conformally invariant models in four dimensions can arise out of non-conformal (Einstein) gravity. As an `existence proof' that th…
Supersymmetric quantum cosmological billiards
Axel Kleinschmidt, Michael Koehn, Hermann Nicolai
D=11 Supergravity near a space-like singularity admits a cosmological billiard description based on the hyperbolic Kac-Moody group E10. The quantization of this system via the supe…
Universal BPS structure of stationary supergravity solutions
Guillaume Bossard, Hermann Nicolai, K. S. Stelle
We study asymptotically flat stationary solutions of four-dimensional supergravity theories via the associated G/H* pseudo-Riemannian non-linear sigma models in three spatial dimen…