{"work":{"id":"e5fbc1ac-8e91-4df1-ae69-96082a7eed14","openalex_id":null,"doi":null,"arxiv_id":"2508.19989","raw_key":null,"title":"Gravitational quasinormal modes of the Hayward spacetime","authors":null,"authors_text":"S","year":2025,"venue":"gr-qc","abstract":"We study gravitational quasinormal modes of the Hayward spacetime, a regular black-hole geometry that also admits an interpretation as an effective quantum-corrected solution within asymptotically safe gravity. Using both the higher-order WKB method supplemented with Pade approximants and time-domain integration with Prony analysis, we obtain accurate spectra for axial perturbations and explore the impact of the quantum parameter $\\gamma$. We find that increasing $\\gamma$ systematically raises the oscillation frequencies while reducing the damping rates, making the ringdown longer lived. For the first overtone, the effect of $\\gamma$ is noticeably stronger than for the fundamental mode, providing an indication of the so-called outburst of overtones previously observed for test fields, and pointing to the particular sensitivity of subdominant modes to near-horizon quantum corrections. In addition, the analytic approximation for quasinormal modes are obtained in the form of expansion beyond the eikonal limit.","external_url":"https://arxiv.org/abs/2508.19989","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-07-10T14:47:14.299354+00:00","pith_arxiv_id":"2508.19989","created_at":"2026-05-11T11:06:02.476650+00:00","updated_at":"2026-07-10T14:47:14.299354+00:00","title_quality_ok":true,"display_title":"Bolokhov and M","render_title":"Bolokhov and M"},"hub":{"state":{"work_id":"e5fbc1ac-8e91-4df1-ae69-96082a7eed14","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":17,"external_cited_by_count":null,"distinct_field_count":1,"first_pith_cited_at":"2026-01-29T21:33:15+00:00","last_pith_cited_at":"2026-07-08T22:22:08+00:00","author_build_status":"not_needed","summary_status":"needed","contexts_status":"needed","graph_status":"needed","ask_index_status":"not_needed","reader_status":"not_needed","recognition_status":"not_needed","updated_at":"2026-08-20T16:39:44.187784+00:00","tier_text":"hub"},"tier":"hub","role_counts":[{"context_role":"background","n":7},{"context_role":"method","n":1}],"polarity_counts":[{"context_polarity":"background","n":6},{"context_polarity":"unclear","n":1},{"context_polarity":"use_method","n":1}],"runs":{},"summary":{},"graph":{},"authors":[]}}