9 papers
UV/IR mixing as an artifact of non-covariant quantisation
Kilian Hersent, Flavio Mercati
We study the path integral quantisation of a scalar field on a generic noncommutative deformation of Minkowski space, built as a quantum homogeneous space of a deformed Poincaré g…
Planckian bound on IR/UV mixing from cold-atom interferometry
Giovanni Amelino-Camelia, Giuseppe Fabiano, Domenico Frattulillo +1
IR/UV mixing (a mechanism causing ultraviolet quantum-gravity effects to manifest themselves also in a far-infrared regime) is a rare case of feature found in several approaches to…
Covariant quantization of field theories on T-Minkowski noncommutative spacetimes
Giuseppe Fabiano, Flavio Mercati
We develop a quantization scheme for the quantum theory of a real scalar field on a class of non-commutative spacetime models collectively known as T-Minkowski. Requiring the theor…
T-Minkowski noncommutative spacetimes II: classical field theory
Flavio Mercati
This paper is the second part of a series that develops the mathematical framework necessary for studying field theories on ``T-Minkowski'' noncommutative spacetimes. These spaceti…
Doubly Quantum Mechanics
Vittorio D'Esposito, Giuseppe Fabiano, Domenico Frattulillo +1
Motivated by the expectation that relativistic symmetries might acquire quantum features in Quantum Gravity, we take the first steps towards a theory of ''Doubly'' Quantum Mechanic…
Noncommutative Lightcones from Quantum SO(2,1) Conformal Groups
Martina Adamo, Angel Ballesteros, Flavio Mercati
Five new families of noncommutative lightcones in 2+1 dimensions are presented as the quantizations of the inequivalent Poisson homogeneous structures that emerge when the lightcon…