Nonlocal quantum gravity and M-theory
arXiv:1404.2137 · doi:10.1103/PhysRevD.91.124059
Abstract
We construct a ultraviolet completion of the bosonic sector of 11-dimensional supergravity motivated by string field theory. We start from a general class of theories characterized by an entire nonpolynomial form factor which allows one to avoid new poles in the propagator and improves the high-energy behavior of the loops amplitudes. Comparing these models with effective string field theory, a unique form factor is selected out. In view of this, we modify 10-dimensional supergravity and finally get a ultraviolet completion of 11-dimensional supergravity by an oxidation process. The result is a candidate for a finite and unitary particle-field limit of M-theory.
16 pages, 1 figure. v2: title changed, discussion improved and extended in Secs. I, VI and VII, new Sec. V on massive states added, typos corrected (including different sign conventions in several equations), results unchanged
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