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arXiv · 1807.07649

Ergoregion instability of a rotating quantum system

Leandro A. Oliveira·Luis J. Garay·Luís C. B. Crispino
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Abstract

Using the analogy between acoustic perturbations in an ideal fluid and the description of a Klein-Gordon scalar field in a curved spacetime, we study the quasinormal modes of a quantum system: the rotating Bose-Einstein condensate. To compute quasinormal frequencies, we use two different numerical techniques, namely the direct integration and the continued-fraction methods. We study in detail the ergoregion instability of this linearly perturbed system, comparing the results with different setup configurations.

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Leandro A. Oliveira, Luis J. Garay, Luís C. B. Crispino. 2018-07-19. Ergoregion instability of a rotating quantum system. https://doi.org/10.1103/physrevd.97.124063

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