Fluxes of Higher-spin Currents and Hawking Radiations from Charged Black Holes

TL;DR

This paper extends the analysis of Hawking radiation from charged black holes by calculating fluxes of higher-spin currents using conformal field theory, revealing the full thermal spectrum through transformation properties.

Contribution

It generalizes the method for deriving Hawking fluxes to include higher-spin currents and charged black holes, providing a comprehensive CFT-based approach.

Findings

Higher-spin current fluxes match Hawking radiation spectra

Conformal and gauge transformations reproduce thermal distributions

Method applies to charged black holes for detailed flux calculations

Abstract

This is an extended version of the previous paper (hep-th/0701272). Quantum fields near horizons can be described in terms of an infinite set of two-dimensional conformal fields. We first generalize the method of Christensen and Fulling to charged black holes to derive fluxes of energy and charge. These fluxes can be obtained by employing a conformal field theory technique. We then apply this technique to obtain the fluxes of higher-spin currents and show that the thermal distribution of Hawking radiation from a charged black hole can be completely reproduced by investigating transformation properties of the higher-spin currents under conformal and gauge transformations.