Ergoregion instability of a rotating quantum system
General Relativity and Quantum Cosmology
2018-07-23 v1
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.
Cite
@article{arxiv.1807.07649,
title = {Ergoregion instability of a rotating quantum system},
author = {Leandro A. Oliveira and Luis J. Garay and Luís C. B. Crispino},
journal= {arXiv preprint arXiv:1807.07649},
year = {2018}
}
Comments
9 pages, 3 figures, 1 table