Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of Naples Federico IIIT4k papers
- Centre National de la Recherche ScientifiqueFR3.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT3.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR3.3k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT3.1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR3.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT3k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.9k papers
- Rutherford Appleton LaboratoryGB2.8k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2.8k papers
- Sapienza University of RomeIT2.7k papers
- The Ohio State UniversityUS2.7k papers
15 papers · 2 filters
High energy bosons do not propagate
M. A. Kurkov, Fedele Lizzi, Dmitri Vassilevich
We discuss the propagation of bosons (scalars, gauge fields and gravitons) at high energy in the context of the spectral action. Using heat kernel techniques, we find that in the h…
Comparing Double String Theory Actions
Luca De Angelis, S. J. Gabriele Gionti, Raffaele Marotta +1
Aimed to a deeper comprehension of a manifestly T-dual invariant formulation of string theory, in this paper a detailed comparison between the non-covariant action proposed by Tsey…
Quantum gauge theories on noncommutative 3-d space
Antoine Géré, Patrizia Vitale, Jean-Christophe Wallet
We consider a class of gauge invariant models on the noncommutative space , a deformation of . Focusing on massless models with no linear depend…
Self-dual road to noncommutative gravity with twist: a new analysis
Elisabetta Di Grezia, Giampiero Esposito, Patrizia Vitale
The field equations of noncommutative gravity can be obtained by replacing all exterior products by twist-deformed exterior products in the action functional of general relativity,…
Counting Photons in Static Electric and Magnetic Fields
Wolfgang Mueck
We describe the electromagnetic field by the massless limit of a massive vector field in the presence of a Coulomb gauge fixing term. The gauge fixing term ensures that, in the mas…
Spectral Regularisation: Induced Gravity and the Onset of Inflation
Max A. Kurkov, Mairi Sakellariadou
Using spectral regularisation, we compute the Weyl anomaly and express the anomaly generating functional of the quantum effective action through a collective scalar degree of freed…
Spectral Action and Gravitational effects at the Planck scale
Agostino Devastato
We discuss the possibility to extend the spectral action up to energy close to the Planck scale, taking also into account the gravitational effects given by graviton exchange. Incl…
The Gribov phenomenon in flat and curved spaces
Marco de Cesare
The quantization of Yang-Mills theories relies on the gauge-fixing procedure. However, in the non-Abelian case this procedure leads to the well known Gribov ambiguity. In order to…
Casimir energy in the Gribov-Zwanziger approach to QCD
Fabrizio Canfora, Luigi Rosa
In this paper we study the Casimir energy of QCD within the Gribov-Zwanziger approach. In this model non-perturbative effects of gauge copies are properly taken into account. We sh…
Quantum field theory in curved graphene spacetimes, Lobachevsky geometry, Weyl symmetry, Hawking effect, and all that
Alfredo Iorio, Gaetano Lambiase
The solutions of many issues, of the ongoing efforts to make deformed graphene a tabletop quantum field theory in curved spacetimes, are presented. A detailed explanation of the sp…
On the number of soft quanta in classical field configurations
Wolfgang Mück
A crucial ingredient in the large-N quantum portrait of black holes proposed by Dvali and Gomez is the estimate of the number of soft quanta that make up the classical gravitationa…
Quantization of Black Holes entropy and its cosmological consequences
Gerardo Cristofano, Giuseppe Maiella, Cosimo Stornaiolo
Starting from a quantization relation for primordial extremal black holes with electric and magnetic charges, it is shown that their entropy is quantized. Furthermore the energy le…
Noncommutative gauge theories on as matrix models
Pierre Martinetti, Patrizia Vitale, Jean-Christophe Wallet
We study a class of noncommutative gauge theory models on 2-dimensional Moyal space from the viewpoint of matrix models and explore some related properties. Expanding the action ar…
Grand Symmetry, Spectral Action, and the Higgs mass
Agostino Devastato, Fedele Lizzi, Pierre Martinetti
In the context of the spectral action and the noncommutative geometry approach to the standard model, we build a model based on a larger symmetry. With this "grand symmetry" it is…
Universal Landau Pole
A. A. Andrianov, D. Espriu, M. A. Kurkov +1
Our understanding of quantum gravity suggests that at the Planck scale the usual geometry loses its meaning. If so, the quest for grand unification in a large non-abelian group nat…