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arXiv · 1910.11393

Gravitational antiscreening in stellar interiors

Alfio Bonanno·Roberto Casadio·Alessia Platania
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Abstract

A new class of relativistic stellar structure equations which include the effects of an energy-dependent Newton coupling is presented. Significant modifications in the mass-radius relation for neutron stars are possible only if the running of the Newton coupling due to quantum gravity occurs at low energies. A new Buchdahl limit is derived and its physical implications are discussed. In particular, sub-Planckian self-gravitating objects with arbitrarily small radii are possible.

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Alfio Bonanno, Roberto Casadio, Alessia Platania. 2020-01-15. Gravitational antiscreening in stellar interiors. https://doi.org/10.1088/1475-7516%2F2020%2F01%2F022

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