The Dirac equation and the normalization of its solutions in a closed Friedmann-Robertson-Walker universe

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Original languageEnglish
Article number105021
Journal / PublicationClassical and Quantum Gravity
Volume26
Issue number10
Publication statusPublished - 30 Apr 2009
Externally publishedYes

Abstract

We set up the Dirac equation in a Friedmann-Robertson-Walker geometry and separate the spatial and time variables. In the case of a closed universe, the spatial dependence is solved explicitly, giving rise to a discrete set of solutions. We compute the probability integral and analyze a spacetime normalization integral. This analysis allows us to introduce the fermionic projector in a closed Friedmann-Robertson-Walker geometry and to specify its global normalization as well as its local form. © 2009 IOP Publishing Ltd.

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