Massive Type IIA Supergravity and E10
arXiv:0901.4848 · doi:10.1002/prop.200900040
Abstract
In this talk we investigate the symmetry under E10 of Romans' massive type IIA supergravity. We show that the dynamics of a spinning particle in a non-linear sigma model on the coset space E10/K(E10) reproduces the bosonic and fermionic dynamics of massive IIA supergravity, in the standard truncation. In particular, we identify Romans' mass with a generator of E10 that is beyond the realm of the generators of E10 considered in the eleven-dimensional analysis, but using the same, underformed sigma model. As a consequence, this work provides a dynamical unification of the massless and massive versions of type IIA supergravitiy inside E10.
7 pages, 3 figures, based on a talk given at the Fourth RTN "Forces-Universe" Workshop, Varna, September 2008
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