Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Flavio Mercati"'
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 12, Pp 1-30 (2021)
Abstract A novel approach to study the properties of models with quantum-deformed relativistic symmetries relies on a noncommutative space of worldlines rather than the usual noncommutative spacetime. In this setting, spacetime can be reconstructed a
Externí odkaz:
https://doaj.org/article/a21bcf0c031a406dae49151dbd7fe17c
Publikováno v:
Nuclear Physics B, Vol 958, Iss , Pp 115117- (2020)
A useful concept in the development of physical models on the κ-Minkowski noncommutative spacetime is that of a curved momentum space. This structure is not unique: several inequivalent momentum space geometries have been identified. Some are associ
Externí odkaz:
https://doaj.org/article/47cd28839bab484d89fc7e54605a68a5
Autor:
Flavio Mercati, Matteo Sergola
Publikováno v:
Physics Letters B, Vol 787, Iss , Pp 105-110 (2018)
Noncommutative spacetimes are a proposed effective description of the low-energy regime of Quantum Gravity. Defining the microcausality relations of a scalar quantum field theory on the κ-Minkowski noncommutative spacetime allows us to define for th
Externí odkaz:
https://doaj.org/article/035a5825ef1445e5b4a0439c505eb0e8
Autor:
Flavio Mercati, Matteo Sergola
Publikováno v:
Nuclear Physics B, Vol 933, Iss , Pp 320-339 (2018)
In this work we study the deformations into Lie bialgebras of the three relativistic Lie algebras: de Sitter, Anti-de Sitter and Poincaré, which describe the symmetries of the three maximally symmetric spacetimes. These algebras represent the center
Externí odkaz:
https://doaj.org/article/662ee746db8c4059a5a5f0ab1a1fa08a
Autor:
Angel Ballesteros, Flavio Mercati
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 8, Pp 1-15 (2018)
Abstract We study the Lie bialgebra structures that can be built on the one-dimensional central extension of the Poincaré and (A)dS algebras in (1 + 1) dimensions. These central extensions admit more than one interpretation, but the simplest one is
Externí odkaz:
https://doaj.org/article/5b70f0e6a8ba417286a6cad3cda44099
Publikováno v:
Physics Letters B, Vol 778, Iss C, Pp 339-343 (2018)
All measurements are comparisons. The only physically accessible degrees of freedom (DOFs) are dimensionless ratios. The objective description of the universe as a whole thus predicts only how these ratios change collectively as one of them is change
Externí odkaz:
https://doaj.org/article/820b59ea427e4846bc218f14c0acb9a8
Publikováno v:
Symmetry, Vol 13, Iss 11, p 2099 (2021)
Recent work showed that κ-deformations can describe the quantum deformation of several relativistic models that have been proposed in the context of quantum gravity phenomenology. Starting from the Poincaré algebra of special-relativistic symmetrie
Externí odkaz:
https://doaj.org/article/2f5f7b49765648ac862c5ffe1089117e
Autor:
Flavio Mercati, Paula Reichert
Publikováno v:
Symmetry, Vol 13, Iss 9, p 1712 (2021)
We discuss the total collision singularities of the gravitational N-body problem on shape space. Shape space is the relational configuration space of the system obtained by quotienting ordinary configuration space with respect to the similarity group
Externí odkaz:
https://doaj.org/article/008eb2b262e74fec9e9b9c902f487423
Publikováno v:
Physics Letters B, Vol 766, Iss C, Pp 181-185 (2017)
We present a framework which unifies a large class of noncommutative spacetimes that can be described in terms of a deformed Heisenberg algebra. The commutation relations between spacetime coordinates are up to linear order in the coordinates, with s
Externí odkaz:
https://doaj.org/article/fe0d7633dc604500a68e54c84d9b0e50
Autor:
Maria Grazia Di Luca, Flavio Mercati
Publikováno v:
Physical Review
We discuss the construction of a free scalar quantum field theory on κ-Minkowski noncommutative spacetime. We do so in terms of κ-Poincaré-invariant N-point functions, i.e., multilocal functions which respect the deformed symmetries of the spaceti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e7e3dcedf873c52c357392939c8fe7f
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