Crossover between integer and fractional vortex lattices in coherently coupled two-component bose-einstein condensates

Mattia Cipriani, Muneto Nitta

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

We study the effects of the internal coherent (Rabi) coupling in vortex lattices in two-component BECs under rotation. We find how the vortex lattices without the Rabi coupling known before are connected to the Abrikosov lattice of integer vortices with increasing the Rabi coupling. We find that (1) for small Rabi couplings, fractional vortices in a triangular or square lattice for small or large intercomponent coupling constitute hexamers or tetramers, namely multidimer bound states made of six or four vortices, respectively, (2) these bound states are broken into a set of dimers at intermediate Rabi couplings, and (3) vortices change their partners in various ways depending on the intercomponent coupling, to organize themselves for constituting the Abrikosov lattice of integer vortices at strong Rabi couplings.

Original languageEnglish
Article number170401
JournalPhysical Review Letters
Volume111
Issue number17
DOIs
Publication statusPublished - 2013 Oct 21

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Bose-Einstein condensates
integers
crossovers
vortices
dimers

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Crossover between integer and fractional vortex lattices in coherently coupled two-component bose-einstein condensates. / Cipriani, Mattia; Nitta, Muneto.

In: Physical Review Letters, Vol. 111, No. 17, 170401, 21.10.2013.

Research output: Contribution to journalArticle

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