K-essence Explains a Lorentz Violation Experiment
Miao Li, Yi Pang, Yi Wang
TL;DR
This paper explores how a nonminimally coupled scalar field with spontaneous Lorentz violation can explain recent experimental evidence of Lorentz violation in gravity, showing deformation in the Newtonian potential.
Contribution
It introduces a model with a generalized scalar field that accounts for Lorentz violation effects observed in gravitational experiments.
Findings
Lorentz violation causes deformation in Newtonian potential
Nonminimal coupling is key to explaining experimental results
Model aligns with recent gravitational Lorentz violation evidence
Abstract
Recently, a state of the art experiment shows evidence for Lorentz violation in the gravitational sector. To explain this experiment, we investigate a spontaneous Lorentz violation scenario with a generalized scalar field. We find that when the scalar field is nonminimally coupled to gravity, the Lorentz violation induces a deformation in the Newtonian potential along the direction of Lorentz violation.
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