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Beyond the Chameleon Mechanism
David F. Mota, Douglas J. Shaw
As a result of non-linear self-interactions, in chameleon theories where the field couples to matter much more strongly than gravity does, the fifth force between two bodies with t…
Hidden in the Light: Magnetically Induced Afterglow from Trapped Chameleon Fields
Holger Gies, David F. Mota, Douglas J. Shaw
We propose an afterglow phenomenon as a unique trace of chameleon fields in optical experiments. The vacuum interaction of a laser pulse with a magnetic field can lead to a product…
Detecting Chameleons through Casimir Force Measurements
Philippe Brax, Carsten van de Bruck, Anne-Christine Davis +2
The best laboratory constraints on strongly coupled chameleon fields come not from tests of gravity per se but from precision measurements of the Casimir force. The chameleonic for…
Testing Chameleon Theories with Light Propagating through a Magnetic Field
P. Brax, C. van de Bruck, A. C. Davis +2
It was recently argued that the observed PVLAS anomaly can be explained by chameleon field theories in which large deviations from Newton's law can be avoided. Here we present the…
Evading Equivalence Principle Violations, Cosmological and other Experimental Constraints in Scalar Field Theories with a Strong Coupling to Matter
David F. Mota, Douglas J. Shaw
We show that, as a result of non-linear self-interactions, it is feasible, at least in light of the bounds coming from terrestrial tests of gravity, measurements of the Casimir for…
Strongly Coupled Chameleon Fields: New Horizons in Scalar Field Theory
David F. Mota, Douglas J. Shaw
We show that as a result of non-linear self-interactions, scalar field theories that couple to matter much more strongly than gravity are not only viable but could well be detected…