Black-hole lasing in coherently coupled two-component atomic condensates
Quantum Gases
2017-07-18 v2
Abstract
We theoretically study the black-hole lasing phenomenon in a flowing one-dimensional, coherently coupled two component atomic Bose-Einstein condensate whose constituent atoms interact via a spin-dependent s-wave contact interaction. We show by a numerical analysis the onset of the dynamical instability in the spin branch of the excitations, once a finite supersonic region is created in this branch. We study both a spatially homogeneous geometry and a harmonically trapped condensate. Experimental advantages of the two-component configuration are pointed out, with an eye towards studies of back-reaction phenomena.
Cite
@article{arxiv.1702.07533,
title = {Black-hole lasing in coherently coupled two-component atomic condensates},
author = {Salvatore Butera and Patrik Öhberg and Iacopo Carusotto},
journal= {arXiv preprint arXiv:1702.07533},
year = {2017}
}
Comments
General improvements, corrections and references added