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arXiv · 1606.03981

Gravitational Higgs Mechanism in Neutron Star Interiors

Andrew Coates·Michael W. Horbartsch·Thomas P. Sotiriou
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Abstract

We suggest that nonminimally coupled scalar fields can lead to modifications of the microphysics in the interiors of relativistic stars. As a concrete example, we consider the generation of a non-zero photon mass in such high-density environments. This is achieved by means of a light gravitational scalar, and the scalarization phase transition in scalar-tensor theories of gravitation. Two distinct models are presented, and phenomenological implications are briefly discussed.

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Andrew Coates, Michael W. Horbartsch, Thomas P. Sotiriou. 2016-06-13. Gravitational Higgs Mechanism in Neutron Star Interiors. https://doi.org/10.1103/physrevd.95.084003

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