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39 papers
Spin precession and neutrino helicity flip under the influence of a gravitational plane wave
Reza Saadati, Fayçal Hammad
We recently studied spin precession in various stationary and axisymmetric spacetimes and applied it to the case of neutrinos propagating in those spacetimes. In this paper, the st…
The quantum Hall effect under the influence of gravity and inertia: A unified approach
Alexandre Landry, Fayçal Hammad, Reza Saadati
The quantum Hall effect under the influence of gravity and inertia is studied in a unified way. We make use of an algebraic approach, as opposed to an analytic approach. We examine…
Neutrino spin oscillation in screening models revisited
Fayçal Hammad, Nicolas Fleury, Parvaneh Sadeghi
We study, using the Mathisson-Papapetrou-Dixon equations, the spin oscillation of neutrinos when the latter are coupled to the scalar field of screening models of dark energy. Firs…
Neutrino flavor oscillations inside matter in conformal coupling models
Fayçal Hammad, Parvaneh Sadeghi, Nicolas Fleury
We recently studied neutrinos flavor oscillations in vacuum within conformal coupling models. In this paper, we extend that analysis by investigating neutrino flavor oscillations i…
Revisiting the Schrödinger-Dirac equation
Nicolas Fleury, Fayçal Hammad, Parvaneh Sadeghi
In flat spacetime, the Dirac equation is the "square root" of the Klein-Gordon equation in the sense that by applying the square of the Dirac operator to the Dirac spinor, one reco…
Plane-wave and wavepacket neutrino flavor oscillations in vacuum in conformal coupling models
Fayçal Hammad, Parvaneh Sadeghi, Nicolas Fleury
We investigate neutrino flavor oscillations in vacuum within a general conformal coupling model. We first examine the flavor oscillations within the plane-wave description of neutr…