Vortex-Hole Duality: A Unified Picture of Weak- and Strong-Coupling Regimes of Bosonic Ladders with Flux

Greschner, Sebastian; Vekua, T.

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Greschner, S.; Vekua, T.: Vortex-Hole Duality: A Unified Picture of Weak- and Strong-Coupling Regimes of Bosonic Ladders with Flux. In: Physical Review Letters 119 (2017), Nr. 7, No. 73401. DOI: https://doi.org/10.1103/PhysRevLett.119.073401

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/2046

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Abstract:
Two-leg bosonic ladders with flux harbor a remarkable vortex-hole duality between the weak-coupling vortex lattice superfluids and strong-coupling charge-density-wave crystals. The strong-coupling crystalline states, which are realized in the vicinity of ? flux, are independent of particle statistics, and are related to the incompressible fractional quantum Hall states in the thin-cylinder limit. These fully gapped ground states, away from ? flux, develop nonzero chiral (spin) currents. Contact-interacting quantum gases permit exploration of this vortex-hole duality in experiments. © 2017 American Physical Society.
License of this version:	Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Publication type:	Article
Publishing status:	publishedVersion
Publication date:	2017
Keywords english:	Bosons, Charge density, Charge density waves, Crystalline materials, Ground state, Ladders, Vortex flow, Crystalline state, Fractional quantum Hall state, Particle statistics, Strong coupling, Strong-coupling regime, Thin cylinders, Vortex lattices, Weak couplings, Quantum theory
DDC:	530 \| Physik