paper

Exceptional Form of D=11 Supergravity

arXiv:1308.1673 · doi:10.1103/PhysRevLett.111.231601

Abstract

Eleven-dimensional supergravity reveals large exceptional symmetries upon reduction, in accordance with the U-duality groups of M-theory, but their higher-dimensional geometric origin has remained a mystery. In this letter, we show that D=11 supergravity can be extended to be fully covariant under the exceptional groups E_{n(n)}, n=6,7,8. Motivated by a similar formulation of double field theory we introduce an extended `exceptional spacetime'. We illustrate the construction by giving the explicit E_{6(6)} covariant form: the full D=11 supergravity, in a 5+6 splitting of coordinates but without truncation, embeds into an E_{6(6)} covariant 5+27 dimensional theory. We argue that this covariant form likewise comprises type IIB supergravity.

5 pages, v2: typos in eqs. (18), (21) corrected; minor changes; to appear in Physical Review Letters

References in corpus (6)

Cited by in corpus (188)