Acceleration of the Universe by renormalization-invariant effects of a free quantized scalar field

Details Acceleration of the Universe by renormalization-invariant effects of a free quantized scalar field Acceleration of the Universe by renormalization-invariant effects of a free quantized scalar field

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aps..apru10005p&link_type=abstract

American Physical Society, APS April Meeting, April 16-19, 2005, abstract #U10.005

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We show how a non-interacting scalar field of very low mass can lead to a transition in vacuum energy and pressure that accelerates the recent expansion of the universe. This effect is invariant under renormalization, in the sense that it does not come from any of the renormalization constants, such as the cosmological constant, which we set to 0. [See L. Parker and D. A. T. Vanzella, Phys. Rev. D69, 104009 (2004), and references given there.]

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