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Exact solution of Kerr black hole perturbations via CFT\\(_2\\) and instanton counting. Greybody factor, Quasinormal modes and Love numbers
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Exact solution of Kerr black hole perturbations via CFT\\(_2\\) and instanton counting. Greybody factor, Quasinormal modes and Love numbers
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Paper
Exact solution of Kerr black hole perturbations via CFT\\(_2\\) and instanton counting. Greybody factor, Quasinormal modes and Love numbers
2021
Overview
We give explicit expressions for the finite frequency greybody factor, quasinormal modes and Love numbers of Kerr black holes by computing the exact connection coefficients of the radial and angular parts of the Teukolsky equation. This is obtained by solving the connection problem of the confluent Heun equation in terms of the explicit expression of irregular Virasoro conformal blocks as sums over partitions via the AGT correspondence. In the relevant approximation limits our results are in agreement with existing literature. The method we use can be extended to solve the linearized Einstein equation in other interesting gravitational backgrounds.
Publisher
Cornell University Library, arXiv.org
Subject
