Sequestering the standard model vacuum energy

Kaloper, Nemanja and Padilla, Antonio (2014) Sequestering the standard model vacuum energy. Physical Review Letters, 112 (9). 091304. ISSN 1079-7114

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We propose a very simple reformulation of general relativity, which completely sequesters from gravity all of the vacuum energy from a matter sector, including all loop corrections and renders all contributions from phase transitions automatically small. The idea is to make the dimensional parameters in the matter sector functionals of the 4-volume element of the Universe. For them to be nonzero, the Universe should be finite in spacetime. If this matter is the standard model of particle physics, our mechanism prevents any of its vacuum energy, classical or quantum, from sourcing the curvature of the Universe. The mechanism is consistent with the large hierarchy between the Planck scale, electroweak scale, and curvature scale, and early Universe cosmology, including inflation. Consequences of our proposal are that the vacuum curvature of an old and large universe is not zero, but very small, that w DE ≃−1 is a transient, and that the Universe will collapse in the future.

Item Type: Article
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number:
Depositing User: Padilla, Antonio
Date Deposited: 27 Jul 2016 11:49
Last Modified: 04 May 2020 16:45

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