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arXiv · 1710.01739

Emergence of junction dynamics in a strongly interacting Bose mixture

Rafael E. Barfknecht·Angela Foerster·Nikolaj T. Zinner
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Abstract

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.

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Rafael E. Barfknecht, Angela Foerster, Nikolaj T. Zinner. 2017-10-04. Emergence of junction dynamics in a strongly interacting Bose mixture. https://doi.org/10.1088/1367-2630%2Faac718

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