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Dynamics of One-dimensional Bose Liquids: Andreev-like Reflection at Y-junctions and Absence of the Aharonov-Bohm Effect

By Akiyuki Tokuno, Masaki Oshikawa and Eugene A. Demler

Abstract

We study one dimensional Bose liquids of interacting ultracold atoms in the Y-shaped potential when each branch is filled with atoms. We find that the excitation packet incident on a single Y-junction should experience a negative density reflection analogous to the Andreev reflection at normal-superconductor interfaces, although the present system does not contain fermions. In a ring interferometer type configuration, we find that the transport is completely insensitive to the (effective) flux contained in the ring, in contrast to the Aharonov-Bohm effect of a single particle in the same geometry.Physic

Publisher: 'American Physical Society (APS)'
Year: 2014
DOI identifier: 10.1103/PhysRevLett.100.140402
OAI identifier: oai:dash.harvard.edu:1/13421120
Journal:

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