Quasinormal modes in two-photon autocorrelation and the geometric-optics approximation (2022)
- Authors:
- Autor USP: QIAN, WEILIANG - EEL
- Unidade: EEL
- DOI: 10.1140/epjc/s10052-022-10155-w
- Subjects: BURACOS NEGROS; FÍSICA
- Agências de fomento:
- Language: Inglês
- Abstract: In this work, we study the black hole light echoes in terms of the two-photon autocorrelation and explore their connection with the quasinormal modes. It is shown that the above time-domain phenomenon can be analyzed by utilizing the well-known frequency-domain relations between the quasinormal modes and characteristic parameters of null geodesics. We found that the time-domain correlator, obtained by the inverse Fourier transform, naturally acquires the echo feature, which can be attributed to a collective effect of the asymptotic poles through a weighted summation of the squared modulus of the relevant Green’s functions. Specifically, the contour integral leads to a summation taking over both the overtone index and angular momentum. Moreover, the dominant contributions to the light echoes are from those in the eikonal limit, consistent with the existing findings using the geometric-optics arguments. For the Schwarzschild black holes, we demonstrate the results numerically by considering a transient spherical light source. Also, for the Kerr spacetimes, we point out a potential difference between the resulting light echoes using the geometric-optics approach and those obtained by the black hole perturbation theory. Possible astrophysical implications of the present study are addressed.
- Imprenta:
- Source:
- Título: European physical journal c
- ISSN: 14346044
- Volume/Número/Paginação/Ano: v.82, n.188, p.1-13, 2022
- Este periódico é de acesso aberto
- Este artigo NÃO é de acesso aberto
-
ABNT
QIAN, Wei-Liang et al. Quasinormal modes in two-photon autocorrelation and the geometric-optics approximation. European physical journal c, v. 82, n. 188, p. 1-13, 2022Tradução . . Disponível em: https://doi.org/10.1140/epjc/s10052-022-10155-w. Acesso em: 07 fev. 2026. -
APA
Qian, W. -L., Lin, K., Kuang, X. -M., Wang, B., & Yue, R. -H. (2022). Quasinormal modes in two-photon autocorrelation and the geometric-optics approximation. European physical journal c, 82( 188), 1-13. doi:10.1140/epjc/s10052-022-10155-w -
NLM
Qian W-L, Lin K, Kuang X-M, Wang B, Yue R-H. Quasinormal modes in two-photon autocorrelation and the geometric-optics approximation [Internet]. European physical journal c. 2022 ;82( 188): 1-13.[citado 2026 fev. 07 ] Available from: https://doi.org/10.1140/epjc/s10052-022-10155-w -
Vancouver
Qian W-L, Lin K, Kuang X-M, Wang B, Yue R-H. Quasinormal modes in two-photon autocorrelation and the geometric-optics approximation [Internet]. European physical journal c. 2022 ;82( 188): 1-13.[citado 2026 fev. 07 ] Available from: https://doi.org/10.1140/epjc/s10052-022-10155-w - The matrix method for black hole quasinormal modes
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Informações sobre o DOI: 10.1140/epjc/s10052-022-10155-w (Fonte: oaDOI API)
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