Title:
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Coherent quantum phase slip in two-component bosonic atomtronic circuits
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Author:
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Gallemí Paulet, Jaume; Muñoz Mateo, A.; Mayol Sánchez, Ricardo; Guilleumas, Montserrat
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Other authors:
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Universitat de Barcelona |
Abstract:
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Coherent quantum phase slip consists in the coherent transfer of vortices in superfluids. We investigate this phenomenon in two miscible coherently coupled components of a spinor Bose gas confined in a toroidal trap. After imprinting different vortex states, i.e. states with quantized circulation, on each component, we demonstrate that during the whole dynamics the system remains in a linear superposition of two current states in spite of the nonlinearity, and can be mapped onto a linear Josephson problem. We propose this system as a good candidate for the realization of a Mooij-Harmans qubit and remark its feasibility for implementation in current experiments with 87Rb, since we have used values for the physical parameters currently available in laboratories. |
Subject(s):
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-Física -Superconductivitat -Physics -Superconductivity |
Rights:
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(c) IOP Publishing Ltd and Deutsche Physikalische Gesellschaft, 2016
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Document type:
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Article Article - Published version |
Published by:
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Institute of Physics Pub.
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