Hawking Radiation of Dirac Particles in an Arbitrarily Accelerating Kinnersley Black Hole

TL;DR

This paper investigates the Hawking radiation of Dirac particles in an accelerating Kinnersley black hole, revealing a spin-acceleration coupling effect absent in scalar particle radiation, with horizon properties depending on time and angles.

Contribution

It introduces the spin-acceleration coupling effect in Hawking radiation spectrum of Dirac particles in an accelerating black hole, extending previous scalar particle analyses.

Findings

Horizon location and temperature depend on advanced time and angles.

Hawking spectrum includes a new spin-acceleration interaction term.

Spin-acceleration coupling is absent in scalar particle radiation.

Abstract

Quantum thermal effect of Dirac particles in an arbitrarily accelerating Kinnersley black hole is investigated by using the method of generalized tortoise coordinate transformation. Both the location and the temperature of the event horizon depend on the advanced time and the angles. The Hawking thermal radiation spectrum of Dirac particles contains a new term which represents the interaction between particles with spin and black holes with acceleration. This spin-acceleration coupling effect is absent from the thermal radiation spectrum of scalar particles.