arXiv subjects

Marcia E. Knutt-Wehlau

Publications and source records attributed to Marcia E. Knutt-Wehlau.

3 recordsLinked to original sources

arXiv1997

Component Actions from Curved Superspace: Normal Coordinates and Ectoplasm

We give efficient superspace methods for deriving component actions for supergravity coupled to matter. One method uses normal coordinates to covariantly expand the superfield action, and can be applied straightforwardly to any superspace. The other interprets the component lagrangian as a differential form on a bosonic hypersurface in superspace, and gives a simple derivation for pertinent cases such as chiral superspace.

hep-th↗

arXiv1997

A Superspace Normal Coordinate Derivation of the Density Formula

Using normal coordinate expansions we derive by purely superspace methods the density formula giving the component action corresponding to a superspace supergravity-matter action.

hep-th↗

arXiv1997

Supergravity from a Massive Superparticle and the Simplest Super Black Hole

We describe in superspace a theory of a massive superparticle coupled to a version of two dimensional N=1 dilaton supergravity. The (1+1) dimensional supergravity is generated by the stress-energy of the superparticle, and the evolution of the superparticle is reciprocally influenced by the supergravity. We obtain exact superspace solutions for both the superparticle worldline and the supergravity fields. We use the resultant non-trivial compensator superfield solution to construct a model of a two-dimensional supersymmetric black hole.

hep-th↗