Emergence of junction dynamics in a strongly interacting Bose mixture

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We study the dynamics of a one-dimensional system composed of a bosonic background and one impurity in single- and double-well trapping geometries. In the limit of strong interactions, this system can be modeled by a spin chain where the exchange coefficients are determined by the geometry of the trap. We observe non-trivial dynamics when the repulsion between the impurity and the background is dominant. In this regime, the system exhibits oscillations that resemble the dynamics of a Josephson junction. Furthermore, the double-well geometry allows for an enhancement in the tunneling as compared to the single-well case.

Original languageEnglish
Article number063014
JournalNew Journal of Physics
Volume20
Number of pages13
ISSN1367-2630
DOIs
StatePublished - 12 Jun 2018

    Research areas

  • strongly interacting systems, Bose mixtures, spin dynamics, DIMENSIONAL QUANTUM LIQUIDS, TONKS-GIRARDEAU GAS, OPTICAL LATTICE, IMPENETRABLE BOSONS, BLOCH OSCILLATIONS, ULTRACOLD ATOMS, FERMIONS, SYSTEMS, MAGNETISM, MODEL

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