We theoretically investigate the acoustic analogs of high-angular-momentum rotating black holes in exciton-polariton condensates. Performing numerical simulations of a long-lived ring-shaped condensate configuration with an acoustic horizon and ergoregion for high-angular-momentum states, we observed a quasistable state near critical angular momentum where the acoustic black hole horizon disappears. Our findings offer an insight into the quantum nature of the instability of naked singularity.
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Svetlichnyi et al. (2024) studied this question.
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