Sunday, 10 January, 2016
J.E. Gough, T.S. Ratiu, O.G. Smolyanov

This papers deals with connections between quantum anomalies and transformations of Feynman pseudo-measures. Mathematical objects related to the notion of the volume element in an infinite-...

Thursday, 7 January, 2016
Erwin Bolthausen, Alessandra Cipriani, Noemi Kurt

We consider the membrane model, that is the centered Gaussian field on Zd whose covariance matrix is given by the inverse of the discrete Bilaplacian. We impose a δ- pinning...

Tuesday, 22 December, 2015
Matthias R Gaberdiel, Rajesh Gopakumar

The symmetries of string theory on {\rm AdS}_3 \times {\rm S}^3 \times \mathbb{T}^4 at the dual of the symmetric product orbifold point are described by a so-called Higher Spin Square (...

Sunday, 20 December, 2015
Giulia Cusin, Stefano Foffa, Michele Maggiore, Michele Mancarella

Recent work has shown that modifications of General Relativity based on the addition of a non-local term R\,\Box^{-2}R produce a dynamical model of dark energy, which is cosmologically viable...

Thursday, 17 December, 2015
Jürg Fröhlich, Pierre-François Rodriguez

Correlation functions of ferromagnetic spin systems satisfying a Lee-Yang property are studied. It is shown that, for classical systems in a non-vanishing uniform external magnetic field h...

Wednesday, 16 December, 2015
Jacob van den Berg, Demeter Kiss, Pierre Nolin

Frozen percolation on the binary tree was introduced by Aldous around fifteen years ago, inspired by sol-gel transitions. We investigate a version of the model on the triangular lattice, where...

Wednesday, 16 December, 2015
Sergei Merkulov, Thomas Willwacher

We compute the homotopy derivations of the properads governing even and odd Lie bialgebras as well as involutive Lie bialgebras. The answer may be expressed in terms of the Kontsevich graph...

Tuesday, 15 December, 2015
Roberto Franceschini, Gian F. Giudice, Jernej F. Kamenik, Matthew McCullough, Alex Pomarol, Riccardo Rattazzi, Michele Redi, Francesco Riva, Alessandro Strumia, Riccardo Torre

Run 2 LHC data show hints of a new resonance in the diphoton distribution at an invariant mass of 750 GeV. We analyse the data in terms of a new boson, extracting information on its properties...

Tuesday, 15 December, 2015
Anton Khoroshkin, Sergei Merkulov, Thomas Willwacher

The notion of a quantizable odd Lie bialgebra is introduced. A minimal resolution of the properad governing such Lie bialgebras is constructed.

Wednesday, 9 December, 2015
Matthias Blau, Martin O'Loughlin

We revisit the theory of null shells in general relativity, with a particular emphasis on null shells placed at horizons of black holes. We study in detail the considerable freedom that is...

Wednesday, 9 December, 2015
Sebastian Franco, Yasuyuki Hatsuda, Marcos Marino

We propose exact quantization conditions for the quantum integrable systems of Goncharov and Kenyon, based on the enumerative geometry of the corresponding toric Calabi-Yau manifolds. Our...

Monday, 7 December, 2015
Giulia Cusin, Ruth Durrer, Pietro Guarato, Mariele Motta

We introduce a new formalism to study perturbations of Hassan-Rosen bigravity theory, around general backgrounds for the two dynamical metrics. In particular, we derive the general expression...