# GUP Modified Hawking Radiation in Bumblebee Gravity

**Authors:** Sara Kanzi, \.Izzet Sakall{\i}

arXiv: 1905.00477 · 2022-06-22

## TL;DR

This paper investigates how Lorentz symmetry breaking and the generalized uncertainty principle influence Hawking radiation and greybody factors of a Schwarzschild-like black hole in bumblebee gravity, revealing modifications to temperature and radiation properties.

## Contribution

It introduces a novel analysis of Hawking radiation under GUP and LSB effects in bumblebee gravity, providing semi-analytic greybody factors and demonstrating the impact of LSB on radiation characteristics.

## Key findings

- GUP alters the Hawking temperature of the black hole.
- LSB decreases the greybody factor, affecting radiation emission.
- The effects are consistent across different particle spins.

## Abstract

The effect of Lorentz symmetry breaking (LSB) on the Hawking radiation of Schwarzschild-like black hole found in the bumblebee gravity model (SBHBGM) is studied in the framework of quantum gravity. To this end, we consider Hawking radiation spin-0 (bosons) and spin-$\frac{1}{2}$ particles (fermions), which go in and out through the event horizon of the SBHBGM. We use the modified Klein-Gordon and Dirac equations, which are obtained from the generalized uncertainty principle (GUP) to show how Hawking radiation is affected by the GUP and LSB. In particular, we reveal that, independent of the spin of the emitted particle, GUP causes a change in the Hawking temperature of the SBHBGM. Furthermore, we compute the semi-analytic greybody factors (for both bosons and fermions) of the SBHBGM. Thus, we reveal that LSB is effective on the greybody factor of the SBHBGM such that its redundancy decreases the value of the greybody factor. Our findings are graphically depicted.

## Full text

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## Figures

8 figures with captions in the complete paper: https://tomesphere.com/paper/1905.00477/full.md

## References

171 references — full list in the complete paper: https://tomesphere.com/paper/1905.00477/full.md

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Source: https://tomesphere.com/paper/1905.00477