119 citations · 640 across the 25 of their papers we have counts for
6 papers · 1 filter
Quantum Mechanics on Noncommutative Spacetime
Xavier Calmet, Michele Selvaggi
We consider electrodynamics on a noncommutative spacetime using the enveloping algebra approach and perform a non-relativistic expansion of the effective action. We obtain the Hami…
A Seesaw Mechanism in the Higgs Sector
Xavier Calmet, Josep F. Oliver
In this letter we revisit the seesaw Higgs mechanism. We show how a seesaw mechanism in a two Higgs doublets model can trigger the electroweak symmetry breaking if at least one of…
Second Order Noncommutative Corrections to Gravity
Xavier Calmet, Archil Kobakhidze
In this work, we calculate the leading order corrections to general relativity formulated on a canonical noncommutative spacetime. These corrections appear in the second order of t…
Symmetries, Microcausality and Physics on Canonical Noncommutative Spacetime
Xavier Calmet
In this paper we describe how to implement symmetries on a canonical noncommutative spacetime. We focus on noncommutative Lorentz transformations. We then discuss the structure of…
Grand Unification on Noncommutative Spacetime
Xavier Calmet
We compute the beta-functions of the standard model formulated on a noncommutative spacetime. If we assume that the scale for spacetime noncommutativity is of the order of 2.2 \tim…
Quantum Electrodynamics on Noncommutative Spacetime
Xavier Calmet
We propose a new method to quantize gauge theories formulated on a canonical noncommutative spacetime with fields and gauge transformations taken in the enveloping algebra. We show…