Accelerating boundary analog of a Kerr black hole

Michael R.R. Good, Joshua Foo, Eric V. Linder

An accelerated boundary correspondence (i.e. a flat spacetime accelerating
mirror trajectory) is derived for the Kerr spacetime, with a general formula
that ranges from the Schwarzschild limit (zero angular momentum) to the extreme
maximal spin case (yielding asymptotic uniform acceleration). The beta
Bogoliubov coefficients reveal the particle spectrum is a Planck distribution
at late times with temperature cooler than a Schwarzschild black hole, due to
the "spring constant" analog of angular momentum. The quantum stress tensor
indicates a constant emission of energy flux at late times consistent with
eternal thermal equilibrium.