Divergences and alternative vacuum states for quantized fields in cosmology

Details Divergences and alternative vacuum states for quantized fields in cosmology Divergences and alternative vacuum states for quantized fields in cosmology

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phlb..117..387b&link_type=abstract

Physics Letters B, Volume 117, Issue 6, p. 387-391.

Physics

2

Scientific paper

For massive boson fields in Robertson-Walker universe the renormalizability requirement is shown to restrict severely the vacuum choice. It rules out vacua defined by hamiltonian diagonalization and the ``quantum equivalence principle''. For allowed vacuum states local polarization terms of the energy-momentum tensor mean values are presented.

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