Black-hole lasing in coherently coupled two-component atomic condensates

Salvatore Butera*, Patrik Öhberg, Iacopo Carusotto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
55 Downloads (Pure)


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.

Original languageEnglish
Article number013611
JournalPhysical Review A
Issue number1
Publication statusPublished - 10 Jul 2017

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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