506 citations · 2.1k across the 75 of their papers we have counts for
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Kinematics of particles with quantum de Sitter symmetries
Leonardo Barcaroli, Giulia Gubitosi
We present the first detailed study of the kinematics of free relativistic particles whose symmetries are described by a quantum deformation of the de Sitter algebra, known as -…
Reappraisal of a model for deformed special relativity
Giulia Gubitosi, Joao Magueijo
We revisit one of the earliest proposals for deformed dispersion relations in the light of recent results on dynamical dimensional reduction and production of cosmological fluctuat…
Quantization of fluctuations in DSR: the two-point function and beyond
Giulia Gubitosi, Michele Arzano, Joao Magueijo
We show that the two-point function of a quantum field theory with de Sitter momentum space (herein called DSR) can be expressed as the product of a standard delta function and an…
Hamilton geometry: Phase space geometry from modified dispersion relations
Leonardo Barcaroli, Lukas K. Brunkhorst, Giulia Gubitosi +2
We describe the Hamilton geometry of the phase space of particles whose motion is characterised by general dispersion relations. In this framework spacetime and momentum space are…
Vacuum fluctuations in theories with deformed dispersion relations
Michele Arzano, Giulia Gubitosi, Joao Magueijo +1
We examine vacuum fluctuations in theories with modified dispersion relations which represent dimensional reduction at high energies. By changing units of energy and momentum we ca…
Bayesian evidence and predictivity of the inflationary paradigm
Giulia Gubitosi, Macarena Lagos, Joao Magueijo +1
In this paper we consider the issue of paradigm evaluation by applying Bayes' theorem along the following nested hierarchy of progressively more complex structures: i) parameter es…