Non-metricity Effects on Black Hole Particle Creation in Bumblebee Gravity
Determine how non-metricity, introduced through the metric-affine formulation of bumblebee (Lorentz-violating) gravity, alters Hawking particle creation and black-hole evaporation relative to the purely metric formalism. Compute Bogoliubov coefficients and the Hawking temperature for bosonic modes, re-derive the emission as a tunneling process for both bosons and fermions, estimate greybody bounds, relate greybody factors to quasinormal modes, and constrain the Lorentz-violating parameters from black-hole-lifetime data.
Non-metricity Shifts Boson and Fermion Emission Oppositely and Speeds Black Hole Evaporation
A gravitational-physics research paper (published in JCAP) analyzing how non-metricity affects particle creation and the evaporation of black holes in bumblebee gravity, a theory with spontaneous Lor…