Abstract
As open strings describe self-dual Yang-Mills theory in 2+2 dimensions, the corresponding closed (heterotic) strings describe self-dual ungauged (gauged) supergravity. These theories are conveniently formulated in a chiral superspace with general supercoordinate and local OSp(8|2) gauge invariances. The super-light-cone and covariant-component actions are analyzed. Because only half the Lorentz group is gauged, the gravity field equation is just the vanishing of the torsion.
- Received 15 July 1992
DOI:https://doi.org/10.1103/PhysRevD.47.2504
©1993 American Physical Society