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Charge instability of JMaRT geometries

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arxiv 2305.00865 v1 pith:MOJHUEAF submitted 2023-05-01 hep-th gr-qc

Charge instability of JMaRT geometries

Massimo Bianchi , Carlo Di Benedetto , Giorgio Di Russo , Giuseppe Sudano This is my paper
classification hep-th gr-qc
keywords jmartchargedinstabilitymodestheoryunstableadditionalready
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We perform a detailed study of linear perturbations of the JMaRT family of non-BPS smooth horizonless solutions of type IIB supergravity beyond the near-decoupling limit. In addition to the unstable quasi normal modes (QNMs) responsible for the ergo- region instability, already studied in the literature, we find a new class of `charged' unstable modes with positive imaginary part, that can be interpreted in terms of the emission of charged (scalar) quanta with non zero KK momentum. We use both matched asymptotic expansions and numerical integration methods. Moreover, we exploit the recently discovered correspondence between JMaRT perturbation theory, governed by a Reduced Confluent Heun Equation, and the quantum Seiberg-Witten (SW) curve of $\mathcal{N} = 2$ SYM theory with gauge group SU(2) and $N_f = (0,2)$ flavours.

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Cited by 4 Pith papers

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    gr-qc 2026-07 conditional novelty 6.0

    An MST-type analytic solution for the reduced confluent Heun equation of 5d Schwarzschild-Tangherlini scalar perturbations is constructed and its angular-momentum parameter matches the Seiberg-Witten value.

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