Is the physical vacuum a preferred frame ?

Details Is the physical vacuum a preferred frame ? Is the physical vacuum a preferred frame ?

2007-09-26

arxiv.org/abs/0709.4101v1

Eur.Phys.J.C54:285-290,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, no figures

Scientific paper

10.1140/epjc/s10052-007-0507-0

It is generally assumed that the physical vacuum of particle physics should be characterized by an energy momentum tensor in such a way to preserve exact Lorentz invariance. On the other hand, if the ground state were characterized by its energy-momentum vector, with zero spatial momentum and a non-zero energy, the vacuum would represent a preferred frame. Since both theoretical approaches have their own good motivations, we propose an experimental test to decide between the two scenarios.

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