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Mass-Varying Dark Matter Induced Scalarization and Scalar Clouds around Black Holes

  • H. Mohseni Sadjadi
  • M. Navid Gasemi Zad
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Abstract

We consider a black hole solution embedded in a mass-varying dark matter (DM) halo and study scalarization induced by DM. We derive the required conditions on the scalar DM coupling that allow for a regular bound-state scalar cloud. We find that such configurations exist only for quantized coupling values in terms of the halo's intrinsic parameters (for Hernquist, this reduces to the inverse of the compactness). This study provides a novel connection between DM phenomenology and scalarization around a black hole.

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Cite

BibTeXRIS
BibTeX
@misc{sadjadi2026massvarying,
  title = {{Mass-Varying Dark Matter Induced Scalarization and Scalar Clouds around Black Holes}},
  author = {H. Mohseni Sadjadi and M. Navid Gasemi Zad},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2606.29864},
  eprint = {2606.29864},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.29864},
}
RIS
TY  - UNPB
TI  - Mass-Varying Dark Matter Induced Scalarization and Scalar Clouds around Black Holes
AU  - H. Mohseni Sadjadi
AU  - M. Navid Gasemi Zad
PY  - 2026
DA  - 2026/10/29
PB  - arXiv
DO  - 10.48550/arxiv.2606.29864
UR  - https://arxiv.org/abs/2606.29864
AB  - We consider a black hole solution embedded in a mass-varying dark matter (DM) halo and study scalarization induced by DM. We derive the required conditions on the scalar DM coupling that allow for a regular bound-state scalar cloud. We find that such configurations exist only for quantized coupling values in terms of the halo's intrinsic parameters (for Hernquist, this reduces to the inverse of the compactness). This study provides a novel connection between DM phenomenology and scalarization around a black hole.
ER  -