46 citations · 84 across the 4 of their papers we have counts for
6 papers · 1 filter
On Cancellations of Ultraviolet Divergences in Supergravity Amplitudes
N. E. J. Bjerrum-Bohr, Pierre Vanhove
Concrete calculations have pointed out that amplitudes in perturbative gravity exhibit unanticipated cancellations taming their ultraviolet behaviour independently of supersymmetry…
Explicit Cancellation of Triangles in One-loop Gravity Amplitudes
N. E. J. Bjerrum-Bohr, Pierre Vanhove
We analyse one-loop graviton amplitudes in the field theory limit of a genus-one string theory computation. The considered amplitudes can be dimensionally reduced to lower dimensio…
Topological M Theory from Pure Spinor Formalism
Pietro Antonio Grassi, Pierre Vanhove
We construct multiloop superparticle amplitudes in 11d using the pure spinor formalism. We explain how this construction reduces to the superparticle limit of the multiloop pure sp…
Localized gravity in non-compact superstring models
Emmanuel Kohlprath, Pierre Vanhove
We discuss a string-theory-derived mechanism for localized gravity, which produces a deviation from Newton's law of gravitation at cosmological distances. This mechanism can be rea…
Supersymmetric R^4 actions and quantum corrections to superspace torsion constraints
Kasper Peeters, Pierre Vanhove, Anders Westerberg
We present the supersymmetrisation of the anomaly-related R^4 term in eleven dimensions and show that it induces no non-trivial modifications to the on-shell supertranslation algeb…
BPS Saturated Amplitudes and Non-perturbative String Theory
P. Vanhove
The study of the special F^4 and R^4 in the effective action for the Spin(32)/Z_2 and type II strings sheds some light on D-brane calculus and on instanton contribution counting. T…