A new mechanism for neutralizing the cosmological constant.

Details A new mechanism for neutralizing the cosmological constant. A new mechanism for neutralizing the cosmological constant.

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991nuphb.361..695d&link_type=abstract

Nuclear Physics B, Part. Phys., Vol. 361, No. 3, p. 695 - 712

Physics

Nuclear Physics

11

Scientific paper

The authors propose a dynamical mechanism for neutralizing the cosmological constant in our universe. The analysis is wholly lorentzian. Quantum cosmology is an effective theory below the Planck scale, and it suffices for the purpose of the demonstration. The vacuum energy from particle physics is many orders of magnitude too great to explain the measured smallness of the cosmological constant. Any generic field that allows to shift the vacuum energy has the possibility of neutralizing it. The essential result of the paper is that the dominant vacuum state for the field is indeed the one that exactly cancels the particle physics vacuum energy. This means that a large universe, such as ours, has a vanishing cosmological constant.

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