Year: 2017
Type: article
Abstract: We study theoretically 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 backreaction phenomena.
Source: Physical Review A
Institutions: Heriot-Watt University, University of Trento
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2593485380