Physics
Scientific paper
Feb 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pthph..71..309c&link_type=abstract
Progress of Theoretical Physics, Vol. 71, No. 2, pp. 309-319
Physics
4
Scientific paper
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 Delta1ij (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.
Castagnino Mario
Chimento Luis
Laciana C.
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