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Quasinormal modes in effective loop quantum gravity and consequences for isospectrality — arXiv:2608.11088

Source: arXiv (en)
Original: https://arxiv.org/abs/2608.11088
License (as archived): CC0-1.0
Archived: 2026-10-19T06:44:44.065Z
SHA-256 of the archived text: 4228e809f5cbabffd6fcfc3971ec1b5e80a782a1413ad4071dd553f2a0a4d161
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How to cite

Quasinormal modes in effective loop quantum gravity and consequences for isospectrality — arXiv:2608.11088 — arXiv (en), https://arxiv.org/abs/2608.11088 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_7fbdcd989969 (Metraipolis archive dc_7fbdcd989969, sha256 4228e809f5cbabffd6fcfc3971ec1b5e80a782a1413ad4071dd553f2a0a4d161)

BibTeX

@misc{dc7fbdcd989969,
  title = {Quasinormal modes in effective loop quantum gravity and consequences for isospectrality — arXiv:2608.11088},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2608.11088},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_7fbdcd989969; sha256 4228e809f5cbabffd6fcfc3971ec1b5e80a782a1413ad4071dd553f2a0a4d161},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2608.11088. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

We investigate the quasinormal mode spectra of axial and polar perturbations about the effective Ashtekar, Olmedo, and Singh black hole geometry within the hybrid approach to loop quantum gravity. We also compare our results with those previously obtained by del-Corral and Olmedo for the dressed metric approach. Starting from mode equations that are straightforward effective counterparts of the classical equations, we compute these spectra by means of a high-order WKB method with Padé resummation. The violation of isospectrality between axial and polar perturbations that was claimed to exist in the dressed metric approach persists with the hybrid quantization, with deviations of the same order of magnitude as in the former effective case, although slightly larger for the hybrid prescription. In both situations, the isospectrality breaking decreases with the cubic root of the squared black hole mass in Planck units, consistently recovering the classical Schwarzschild limit. In addition, we perform a careful assessment of the applicability of the WKB approximation to the present effective analysis, confirming the parameter regions where the method remains reliable and highlighting specific mode cases for which the approximation breaks down.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-08-12 in gr-qc).
Categorie arXiv: General Relativity and Quantum Cosmology (gr-qc).
Pagina del lavoro: https://arxiv.org/abs/2608.11088 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-19T06:37:47.392Z dalla pagina https://arxiv.org/catchup/gr-qc/2026-08-12?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).