Scalar Love numbers and Love symmetries of 5-dimensional Myers-Perry black holes

Abstract The near-zone “Love” symmetry resolves the naturalness issue of black hole Love number vanishing with SL (2, ℝ) representation theory. Here, we generalize this proposal to 5-dimensional asymptotically flat and doubly spinning (Myers-Perry) black holes....

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Main Authors: Charalambous, Panagiotis, Ivanov, Mikhail M.
Other Authors: Massachusetts Institute of Technology. Center for Theoretical Physics
Format: Article
Language:English
Published: Springer Berlin Heidelberg 2023
Online Access:https://hdl.handle.net/1721.1/151722
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author Charalambous, Panagiotis
Ivanov, Mikhail M.
author2 Massachusetts Institute of Technology. Center for Theoretical Physics
author_facet Massachusetts Institute of Technology. Center for Theoretical Physics
Charalambous, Panagiotis
Ivanov, Mikhail M.
author_sort Charalambous, Panagiotis
collection MIT
description Abstract The near-zone “Love” symmetry resolves the naturalness issue of black hole Love number vanishing with SL (2, ℝ) representation theory. Here, we generalize this proposal to 5-dimensional asymptotically flat and doubly spinning (Myers-Perry) black holes. We consider the scalar response of Myers-Perry black holes and extract its static scalar Love numbers. In agreement with the naturalness arguments, these Love numbers are, in general, non-zero and exhibit logarithmic running unless certain resonant conditions are met; these conditions include new cases with no previously known analogs. We show that there exist two near-zone truncations of the equations of motion that exhibit enhanced SL (2, ℝ) Love symmetries that explain the vanishing of the static scalar Love numbers in the resonant cases. These Love symmetries can be interpreted as local SL (2, ℝ) SL (2, ℝ) near-zone symmetries spontaneously broken down to global SL (2, ℝ) × U (1) symmetries by the periodic identification of the azimuthal angles. We also discover an infinite-dimensional extension of the Love symmetry into SL (2, ℝ) ⋉ U ̂ 1 V 2 $$ \ltimes \hat{U}{(1)}_{\mathcal{V}}^2 $$ that contains both Love symmetries as particular subalgebras, along with a family of SL (2, ℝ) subalgebras that reduce to the exact near-horizon Myers-Perry black hole isometries in the extremal limit. Finally, we show that the Love symmetries acquire a geometric interpretation as isometries of subtracted (effective) black hole geometries that preserve the internal structure of the black hole and interpret these non-extremal SL (2, ℝ) structures as remnants of the enhanced isometry of the near-horizon extremal geometries.
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spelling mit-1721.1/1517222024-02-05T18:35:22Z Scalar Love numbers and Love symmetries of 5-dimensional Myers-Perry black holes Charalambous, Panagiotis Ivanov, Mikhail M. Massachusetts Institute of Technology. Center for Theoretical Physics Abstract The near-zone “Love” symmetry resolves the naturalness issue of black hole Love number vanishing with SL (2, ℝ) representation theory. Here, we generalize this proposal to 5-dimensional asymptotically flat and doubly spinning (Myers-Perry) black holes. We consider the scalar response of Myers-Perry black holes and extract its static scalar Love numbers. In agreement with the naturalness arguments, these Love numbers are, in general, non-zero and exhibit logarithmic running unless certain resonant conditions are met; these conditions include new cases with no previously known analogs. We show that there exist two near-zone truncations of the equations of motion that exhibit enhanced SL (2, ℝ) Love symmetries that explain the vanishing of the static scalar Love numbers in the resonant cases. These Love symmetries can be interpreted as local SL (2, ℝ) SL (2, ℝ) near-zone symmetries spontaneously broken down to global SL (2, ℝ) × U (1) symmetries by the periodic identification of the azimuthal angles. We also discover an infinite-dimensional extension of the Love symmetry into SL (2, ℝ) ⋉ U ̂ 1 V 2 $$ \ltimes \hat{U}{(1)}_{\mathcal{V}}^2 $$ that contains both Love symmetries as particular subalgebras, along with a family of SL (2, ℝ) subalgebras that reduce to the exact near-horizon Myers-Perry black hole isometries in the extremal limit. Finally, we show that the Love symmetries acquire a geometric interpretation as isometries of subtracted (effective) black hole geometries that preserve the internal structure of the black hole and interpret these non-extremal SL (2, ℝ) structures as remnants of the enhanced isometry of the near-horizon extremal geometries. 2023-08-01T18:02:48Z 2023-08-01T18:02:48Z 2023-07-28 2023-07-30T03:15:15Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/151722 Journal of High Energy Physics. 2023 Jul 28;2023(7):222 PUBLISHER_CC en https://doi.org/10.1007/JHEP07(2023)222 Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg
spellingShingle Charalambous, Panagiotis
Ivanov, Mikhail M.
Scalar Love numbers and Love symmetries of 5-dimensional Myers-Perry black holes
title Scalar Love numbers and Love symmetries of 5-dimensional Myers-Perry black holes
title_full Scalar Love numbers and Love symmetries of 5-dimensional Myers-Perry black holes
title_fullStr Scalar Love numbers and Love symmetries of 5-dimensional Myers-Perry black holes
title_full_unstemmed Scalar Love numbers and Love symmetries of 5-dimensional Myers-Perry black holes
title_short Scalar Love numbers and Love symmetries of 5-dimensional Myers-Perry black holes
title_sort scalar love numbers and love symmetries of 5 dimensional myers perry black holes
url https://hdl.handle.net/1721.1/151722
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