Vm. Villalba, QUANTUM EFFECTS ASSOCIATED WITH AN ELECTRICALLY NEUTRAL MASSLESS PARTICLE IN A BERTOTTI-ROBINSON UNIVERSE, Modern physics letters A, 9(34), 1994, pp. 3185-3191
In this article we obtain, by separation of variables, an exact soluti
on to the Dirac equation with anomalous momentum for an electrically n
eutral massless particle in a Bertotti-Robinson universe. We discuss t
he phenomenon of particle creation in this model.