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The Pierre Auger Collaboration
The Pierre Auger Collaboration has reported evidence for anisotropies in the arrival directions of cosmic rays with energies larger thanEth = 55 EeV. There is a correlation above the isotropicExpand
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Quantum corrections in the group field theory formulation of the Engle-Pereira-Rovelli-Livine and Freidel-Krasnov models
We investigate the group field theory formulation of the Engle-Pereira-Rovelli-Livine/Freidel-Krasnov (EPRL/FK spin-foam models. These models aim at a dynamical, i.e., nontopological formulation ofExpand
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Twisting all the way: From classical mechanics to quantum fields
We discuss the effects that a noncommutative geometry induced by a Drinfeld twist has on physical theories. We systematically deform all products and symmetries of the theory. We discussExpand
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Temperature induced phase transitions in four fermion models in curved space-time
Abstract The large N limit of the Gross-Neveu model is here studied on manifolds with constant curvature, at zero and finite temperature. Using the ζ-function regularization, the phase structure isExpand
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Translation invariance, commutation relations and ultraviolet/infrared mixing
We show that the Ultraviolet/Infrared mixing of noncommutative field theories with the Gronewold-Moyal product, whereby some (but not all) ultraviolet divergences become infrared, is a genericExpand
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Quantum Corrections in the Group Field Theory Formulation of the EPRL/FK Models
We investigate the group field theory formulation of the EPRL/FK spin foam models. These models aim at a dynamical, i.e. non-topological formulation of 4D quantum gravity. We introduce a saddle pointExpand
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Metric on the space of quantum states from relative entropy. Tomographic reconstruction
In classical information geometry, the metric tensor and a dual pair of connections on the space of probability distributions may be obtained from a potential function.The metric is essentiallyExpand
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Curing the UV/IR mixing for field theories with translation-invariant $\star$ products
The ultraviolet/infrared (UV/IR) mixing of noncommutative field theories has been recently shown to be a generic feature of translation-invariant associative products. In this paper we propose toExpand
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Jacobi sigma models
We introduce a two-dimensional sigma model associated with a Jacobi manifold. The model is a generalisation of a Poisson sigma model, hence providing a topological open string theory. In theExpand
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