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pro vyhledávání: '"Jaramillo, José Luis"'
In this work we investigate the presence of integrable hidden structures in the dynamics of perturbed non-rotating black holes (BHs). This can also be considered as a first step in a wider program of an effective identification of ``slow'' and ``fast
Externí odkaz:
http://arxiv.org/abs/2407.14196
The response of any open system is closely related to the complex frequencies of the quasinormal modes (QNMs) of the system. While QNM-based expansion theories in electromagnetism have successfully elucidated the modal physics within resonator bounda
Externí odkaz:
http://arxiv.org/abs/2401.15112
Autor:
Boyanov, Valentin, Cardoso, Vitor, Destounis, Kyriakos, Jaramillo, José Luis, Macedo, Rodrigo Panosso
Black holes in anti-de Sitter spacetime provide an important testing ground for both gravitational and field-theoretic phenomena. In particular, the study of perturbations can be useful to further our understanding regarding certain physical processe
Externí odkaz:
http://arxiv.org/abs/2312.11998
The waveform of a binary black hole coalescence appears to be both simple and universal. In this essay we argue that the dynamics should admit a separation into 'fast and slow' degrees of freedom, such that the latter are described by an integrable s
Externí odkaz:
http://arxiv.org/abs/2305.08554
Autor:
Jaramillo, José Luis, Macedo, Rodrigo P., Meneses-Rojas, Oscar, Raffaelli, Bernard, Sheikh, Lamis Al
We discuss a Weyl's law for the quasi-normal modes of black holes that recovers the structural features of the standard Weyl's law for the eigenvalues of the Laplacian in compact regions. Specifically, the asymptotics of the counting function $N(\ome
Externí odkaz:
http://arxiv.org/abs/2212.05570
Autor:
Jaramillo, José Luis, Krishnan, Badri
The binary black hole merger waveform is both simple and universal. Adopting an effective asymptotic description of the dynamics, we aim at accounting for such universality in terms of underlying (effective) integrable structures. More specifically,
Externí odkaz:
http://arxiv.org/abs/2211.03405
Autor:
Boyanov, Valentin, Destounis, Kyriakos, Macedo, Rodrigo Panosso, Cardoso, Vitor, Jaramillo, José Luis
Publikováno v:
Phys. Rev. D 107, 064012 (2023)
Recent investigations of the pseudospectrum in black hole spacetimes have shown that quasinormal mode frequencies suffer from spectral instabilities. This phenomenon may severely affect gravitational-wave spectroscopy and limit precision tests of gen
Externí odkaz:
http://arxiv.org/abs/2209.12950
Autor:
Jaramillo, José Luis
The merger phase of binary black hole coalescences is a transient between an initial oscillating regime (inspiral) and a late exponentially damped phase (ringdown). In spite of the non-linear character of Einstein equations, the merger dynamics prese
Externí odkaz:
http://arxiv.org/abs/2206.08025
Autor:
Jaramillo, José Luis, Krishnan, Badri
From numerical simulations of the Einstein equations, and also from gravitational wave observations, the gravitational wave signal from a binary black hole merger is seen to be simple and to possess certain universal features. The simplicity is somew
Externí odkaz:
http://arxiv.org/abs/2206.02117
Autor:
Gasperin, Edgar, Jaramillo, José Luis
A pseudospectrum analysis has recently provided evidence of a potential generic instability of black hole (BH) quasinormal mode (QNM) overtones under high-frequency perturbations. Such instability analysis depends on the assessment of the size of per
Externí odkaz:
http://arxiv.org/abs/2107.12865