4 papers
Dynamics of charged spin- particles in superposed states minimally coupled to electromagnetism in curved spacetime within the WKB approximation
F. Hammad, R. Saadati, M. Simard +1
We investigate the curved-spacetime dynamics of charged spin- particles minimally coupled to the electromagnetic field and propagating in superposed states of differen…
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…
Spin precession and neutrino helicity flip in various spacetimes
Reza Saadati, Fayçal Hammad, Santiago Novoa-Cattivelli +2
We systematically study spin precession of neutral particles freely moving in spacetime. We first derive the formula describing spin precession within a general stationary and axis…
Non-geodesic timelike observers and the ultralocal limit
Reza Saadati, Luca Valsan, Valerio Faraoni
The ultralocal limit along timelike geodesics, in which any geometry reduces to Bianchi I, does not extend to non-geodesic timelike observers. Exceptions are discussed, including p…