1.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.1k papers
- European Organization for Nuclear ResearchCH1.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1k papers
- University of CagliariIT1k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1k papers
- Heidelberg UniversityDE998 papers
- National Institute for Subatomic PhysicsNL997 papers
- University of BirminghamGB974 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL967 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BariIT956 papers
- University of LiverpoolGB935 papers
118 papers · 1 filter
Asymmetry in momentum space: restoring invariance of -field theory
Tadeusz Adach, Andrea Bevilacqua, Jerzy Kowalski-Glikman +1
The positive and negative energy modes of a field theory in -Minkowski/-Poincaré noncommutative spacetime have very different symmetry properties. This can be understood geom…
Yang model revisited
S. Mignemi
A long time ago C.N. Yang proposed a generalization of the Snyder model to the case of a curved background spacetime, based on an algebra isomorphic to , which includes as…
Amplitude prescriptions in field theories with complex poles
Damiano Anselmi, Fabio Briscese, Gianluca Calcagni +1
In the context of field theories with complex poles, we scrutinize four inequivalent ways of defining the scattering amplitudes, each forfeiting one or more tenets of standard quan…
Towards new relativistic doubly -deformed D=4 quantum phase spaces
Jerzy Lukierski, Stjepan Meljanac, Salvatore Mignemi +2
We propose new noncommutative models of quantum phase spaces, containing a pair of -deformed Poincaré algebras, with two independent double ()-deformations in space-t…
From Snyder space-times to doubly -dependent Yang quantum phase spaces and their generalizations
Jerzy Lukierski, Stjepan Meljanac, Salvatore Mignemi +2
We propose the doubly -dependent Yang quantum phase space which describes the generalization of Yang model. We postulate that such model is covariant under the generaliz…
Evaporation and information puzzle for 2D nonsingular asymptotically flat black holes
Mariano Cadoni, Mauro Oi, Andrea Pierfrancesco Sanna
We investigate the thermodynamics and the classical and semiclassical dynamics of two-dimensional (), asymptotically flat, nonsingular dilatonic black holes. They are ch…
Quantum perturbative solutions of extended Snyder and Yang models with spontaneous symmetry breaking
Jerzy Lukierski, Stjepan Meljanac, Salvatore Mignemi +1
We propose -expansions as perturbative solutions of quantum extended Snyder and Yang models, with -independent classical zero-th order terms responsible for the spont…
Generalized quantum phase spaces for the -deformed extended Snyder model
Jerzy Lukierski, Stjepan Meljanac, Salvatore Mignemi +1
We describe, in an algebraic way, the -deformed extended Snyder models, that depend on three parameters and , which in a suitable algebra basis are described by the de…
Generalizations of Snyder model to curved spaces
S. Meljanac, S. Mignemi
We consider generalizations of the Snyder algebra to a curved spacetime background with de Sitter symmetry. As special cases, we obtain the algebras of the Yang model and of triply…
Unitarity and Page curve for evaporation of 2D AdS black holes
Mariano Cadoni, Andrea Pierfrancesco Sanna
We explore the Hawking evaporation of two-dimensional anti-de Sitter (AdS), dilatonic black hole coupled with conformal matter, and derive the Page curve for the entanglement e…
The Snyder-de Sitter Scalar Quantum Field Theory in D=2
S. A. Franchino-Viñas, S. Mignemi
We study the two-dimensional version of a quartic self-interacting quantum scalar field on a curved and noncommutative space (Snyder-de Sitter). We show that the model is renormali…
Unification of -Minkowski and extended Snyder spaces
S. Meljanac, S. Mignemi
In a recent paper, we have studied associative realizations of the noncommutative extended Snyder model, obtained by including the Lorentz generators (tensorial coordinates) and th…
Casimir effect in Snyder Space
S. A. Franchino-Viñas, S. Mignemi
We show that two indistinguishable aspects of the divergences occurring in the Casimir effect, namely the divergence of the energy of the higher modes and the non-com\-pact\-ness o…
Snyder-de Sitter meets the Grosse-Wulkenhaar model
S. A. Franchino-Viñas, S. Mignemi
We study an interacting scalar field defined on Snyder-de Sitter space. Due to the noncommutativity as well as the curvature of this space, the renormalization of…
Asymptotic freedom for QFT in Snyder-de Sitter space
Sebastián A. Franchino-Viñas, Salvatore Mignemi
We analyze the model of a self-interacting scalar field theory in Snyder-de Sitter space. After analytically computing the one-loop beta functions {in the small nonco…
-deformed phase spaces, Jordanian twists, Lorentz-Weyl algebra and dispersion relations
D. Meljanac, S. Meljanac, S. Mignemi +1
We consider -deformed relativistic quantum phase space and possible implementations of the Lorentz algebra. There are two ways of performing such implementations. One is a simpl…
Noncommutative geometry of the quantum clock
S. Mignemi, N. Uras
We introduce a model of noncommutative geometry that gives rise to the uncertainty relations recently derived from the discussion of a quantum clock. We investigate the dynamics of…
Worldline Formalism in Snyder Spaces
S. A. Franchino-Viñas, S. Mignemi
We study the model for a scalar field in a linearization of the Snyder model, using the methods of the Worldline Formalism. Our main result is a master equation for t…
Holographic Entanglement Negativity for Conformal Field Theories with a Conserved Charge
Parul Jain, Vinay Malvimat, Sayid Mondal +1
We study the application of our recent holographic entanglement negativity conjecture for mixed states of adjacent subsystems in conformal field theories with a conserved charge. I…
Vacuum energy from noncommutative models
S. Mignemi, A. Samsarov
The vacuum energy is computed for a scalar field in a noncommutative background in several models of noncommutative geometry. One may expect that the noncommutativity introduces a…
Relative-locality geometry for the Snyder model
B. Ivetic, S. Mignemi
We investigate the geometry of the energy-momentum space of the Snyder model of noncommmutative geometry and of its generalizations, according to the postulates of relative localit…
Symmetries, Holography and Quantum Phase Transition in Two-dimensional Dilaton AdS Gravity
Mariano Cadoni, Matteo Ciulu, Matteo Tuveri
We present a revisitation of the Almheiri-Polchinski dilaton gravity model from a two-dimensional (2D) bulk perspective. We describe a peculiar feature of the model, namely the pat…
UV/IR Mixing in Nonassociative Snyder phi^4 Theory
Stjepan Meljanac, Salvatore Mignemi, Josip Trampetic +1
Using a quantization of the nonassociative and noncommutative Snyder phi^4 scalar field theory in a Hermitian realization, we present in this article analytical formulas for the mo…
Twist for Snyder space
Daniel Meljanac, Stjepan Meljanac, Salvatore Mignemi +2
We construct the twist operator for the Snyder space. Our starting point is a non-associative star product related to a Hermitian realisation of the noncommutative coordinates orig…