On Three Equivalent Definitions for the Spin 1 Massive Particles in Robertson-Walker Universe : Astrophysics and Relativity

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We compare three massive spin 1 particle models, in curved space-time for a slowly expanding universe of Robertson-Walker type. The comparison is made by means of the kernel which generalizes to curved space-time the flat-space kernel ？_<1ij> (x, y). Three alternative hypotheses are given to define that kernel. We finally conclude that these hypotheses define a particle model equivalent to the adiabatic one.
理論物理学刊行会の論文
1984-02-25