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The shortest scale of quantum field theory

Contributors

Brustein, Ram; Eichler, David; Foffa, Stefano; Oaknin, David H.

Published in

Physical review. D. Particles, fields, gravitation, and cosmology, vol. 65, no. 105013, 4

Publication date

2002

Abstract

It is suggested that the Minkowski vacuum of quantum field theories of a large number of fields N would be gravitationally unstable due to strong vacuum energy fluctuations unless an N dependent sub-Planckian ultraviolet momentum cutoff is introduced. We estimate this implied cutoff using an effective quantum theory of massless fields that couple to semiclassical gravity and find it (assuming that the cosmological constant vanishes) to be bounded by MPlanck/N 1/4. Our bound can be made consistent with entropy bounds and holography, but does not seem to be equivalent to either, and it relaxes but does not eliminate the implied bound on N inherent in entropy bounds.

UNIGE affiliation entities

Citation (ISO format)

BRUSTEIN, Ram et al. The shortest scale of quantum field theory. In: Physical review. D. Particles, fields, gravitation, and cosmology, 2002, vol. 65, n° 105013, p. 4. doi: 10.1103/PhysRevD.65.105013

Main files (1)

Article (Accepted version)

Identifiers

Journal ISSN

1550-2368
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412downloads

Technical informations

Creation

07/07/2009 11:28:00

First validation

07/07/2009 11:28:00

Update

14/03/2023 15:09:34

Status update

14/03/2023 15:09:34

Last indexation

29/10/2024 11:48:16
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