Charging the Love numbers: Charged scalar response coefficients of Kerr-Newman black holes
We study the electrically charged massless scalar response to the general Kerr-Newman black hole and obtain the exact (complex) response coefficients, whose real parts are the Love numbers. We find there is a curious discontinuity between the neutral and charged scalar. The Love numbers vanish for the neutral scalar, but are inversely proportional to the electric charge of the scalar in the small charge limit. We also generalize the results into higher dimensions to some extend.
Authors
- Yi Pang (ORCID: https://orcid.org/0000-0002-8226-3730)
- H. Lü (ORCID: https://orcid.org/0000-0001-7100-2466)
- Liang Ma (ORCID: https://orcid.org/0000-0001-5091-4749)
- Ze-Hua Wu
Institutions
- Tianjin University (CN)
- Peng Huanwu Center for Fundamental Theory (CN)
Publication Details
- Journal
- Physical review. D/Physical review. D.
- Published
- 2025-02-04
- DOI
- https://doi.org/10.1103/physrevd.111.044003
- Citations
- 7
- Primary Topic
- Pulsars and Gravitational Waves Research
- Type
- article
- Field-Weighted Citation Impact
- 8.08
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- National Key Research and Development Program of China