Showing 2014 · hep-thShow all

11 papers · 2 filters

hep-th2014★ 8 cited

Ultraviolet divergences in maximal supergravity from a pure spinor point of view

Anna Karlsson

The ultraviolet divergences of amplitude diagrams in maximal supergravity are investigated using the pure spinor superfield formalism in maximal supergravity, with maximally supers…

hep-th2014★ 10 cited

Dynamical symmetry enhancement near massive IIA horizons

U. Gran, J. Gutowski, U. Kayani +1

We prove that Killing horizons in massive IIA supergravity preserve an even number of supersymmetries, and that their symmetry algebra contains an subalgebra,…

hep-th2014★ 15 cited

Dynamical symmetry enhancement near IIA horizons

U. Gran, J. Gutowski, U. Kayani +1

We show that smooth type IIA Killing horizons with compact spatial sections preserve an even number of supersymmetries, and that the symmetry algebra of horizons with non-trivial f…

hep-th2014★ 38 cited

T-duality and non-geometric solutions from double geometry

Martin Cederwall

Although the introduction of generalised and extended geometry has been motivated mainly by the appearance of dualities upon reductions on tori, it has until now been unclear how (…

hep-th2014★ 13 cited

One-loop spectroscopy of semiclassically quantized strings: bosonic sector

V. Forini, V. Giangreco M. Puletti, M. Pawellek +1

We make a further step in the analytically exact quantization of spinning string states in semiclassical approximation, by evaluating the exact one-loop partition function for a cl…

hep-th2014★ 10 cited

Off-shell structure of twisted (2,0) theory

Ulf Gran, Hampus Linander, Bengt E. W. Nilsson

A -exact off-shell action is constructed for twisted abelian (2,0) theory on a Lorentzian six-manifold of the form , where is a flat two-manifold and…

hep-th2014★ 31 cited

Quantum Phase Transitions in Mass-Deformed ABJM Matrix Model

Louise Anderson, Konstantin Zarembo

When mass-deformed ABJM theory is considered on S(3), the partition function of the theory localises and is given by a matrix model. We solve this model at large-N in the decompact…

hep-th2014★ 45 cited

Localisation in worldline pair production and lightfront zero-modes

Anton Ilderton

The nonperturbative probability of pair production in electric fields depending on lightfront time is given exactly by the locally constant approximation. We explain this by showin…

hep-th2014★ 51 cited

The geometry behind double geometry

Martin Cederwall

Generalised diffeomorphisms in double field theory rely on an O(d,d) structure defined on tangent space. We show that any (pseudo-)Riemannian metric on the doubled space defines su…

hep-th2014★ 11 cited

Supersymmetric geometries of IIA supergravity I

Ulf Gran, George Papadopoulos, Christian von Schultz

IIA supergravity backgrounds preserving one supersymmetry locally admit four types of Killing spinors distinguished by the orbits of on the space of spinors. We solve t…

hep-th2014★ 82 cited

Global aspects of double geometry

David S. Berman, Martin Cederwall, Malcolm J. Perry

We consider the concept of a generalised manifold in the O(d,d) setting, i.e., in double geometry. The conjecture by Hohm and Zwiebach for the form of finite generalised diffeomorp…