https://doi.org/10.1140/epjc/s10052-025-14121-0
Regular Article - Theoretical Physics
Greybody factor for an electrically charged regular-de Sitter black holes in d-dimensions
1
Department of Physics, National Institute of Technology Karnataka, 575 025, Surathkal, India
2
Department of Physics, Indian Institute of Technology, 140 001, Ropar, Punjab, India
3
Department of Physical Sciences, Indian Institute of Science Education and Research Kolkata, 741 246, Mohanpur, West Bengal, India
4
Department of Physics, Mahishadal Raj College, 721 628, Garh Kamalpur, West Bengal, India
5
Department of Physics, Kannur University, 670 327, Payyanur, Kerala, India
6
Department of Oral Health Sciences, School of Dentistry, University of Washington, 98195, Seattle, WA, USA
Received:
17
February
2025
Accepted:
24
March
2025
Published online:
8
April
2025
We investigate the propagation of scalar fields in the gravitational background of higher-dimensional, electrically charged, regular de Sitter black holes. Using an approximate analytical approach, we derive expressions for the greybody factor for both minimally and non-minimally coupled scalar fields. In the low-energy regime, we find that the greybody factor remains non-zero for minimal coupling but vanishes for non-minimal coupling, indicating a significant influence of curvature coupling on the emission profile. Examining the greybody factor alongside the effective potential, we explore how particle parameters (the angular momentum number and the non-minimal coupling constant) and spacetime parameters (the dimension, the cosmological constant, and the non-linear charge parameter) affect particle emission. While non-minimal coupling and higher angular momentum modes generally suppress the greybody factor, the non-linear charge parameter enhances it. We then compute the Hawking radiation spectra for these black holes and observe that, despite the non-linear charge enhancing the greybody factor, both non-minimal coupling and the non-linear charge ultimately reduce the total energy emission rate. These results provide insights into how modifications to classical black hole solutions in higher dimensions, through the inclusion of non-linear electrodynamics, impact their quantum emission properties.
© The Author(s) 2025
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3.
