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- W4311647334 abstract "We make use of an analog gravity perspective to obtain a physical understanding of hydrodynamic instabilities stemming from the presence of quantized vortices in two-component atomic condensates and of their relation to ergoregion instabilities of rotating massive objects in gravitation. In addition to the localized instabilities related to vortex splitting, configurations displaying dynamically unstable modes that extend well outside the vortex core are found. In this case, the superradiant scattering process involves phonon emission into the much wider ergoregion of spin modes, so the physics most closely resembles the one of rotating massive objects. Our results confirm the potential of two-component condensates as analog models of rotating space-times in different regimes of gravitational interest." @default.
- W4311647334 created "2022-12-27" @default.
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- W4311647334 date "2022-12-14" @default.
- W4311647334 modified "2023-10-14" @default.
- W4311647334 title "Superradiant phononic emission from the analog spin ergoregion in a two-component Bose-Einstein condensate" @default.
- W4311647334 doi "https://doi.org/10.48550/arxiv.2212.07337" @default.
- W4311647334 hasPublicationYear "2022" @default.
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