Fermionic Quasinormal Spectrum of the Kerr Black Hole

Details Fermionic Quasinormal Spectrum of the Kerr Black Hole Fermionic Quasinormal Spectrum of the Kerr Black Hole

2005-12-30

arxiv.org/abs/gr-qc/0512165v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages

Scientific paper

We study {\it analytically} the asymptotic quasinormal spectrum of fermionic fields in the Kerr spacetime. We find an analytic expression for these black-hole resonances in terms of the black-hole physical parameters: its Bekenstein-Hawking temperature $T_{BH}$, and its horizon's angular velocity $\Omega$, which is valid in the asymptotic limit $1 \ll \omega_I \ll \omega_R$. It is shown that according to Bohr's correspondence principle, the emission of a Rarita-Schwinger quantum ($s=3/2$) corresponds to a fundamental black-hole area change $\Delta A=4\hbar \ln 2$, while the emission of a Weyl neutrino field ($s=1/2$) corresponds to an adiabatic quantum transition with $\Delta A=0$.

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