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http://hdl.handle.net/2445/100686
Title: | Coherent quantum phase slip in two-component bosonic atomtronic circuits |
Author: | Gallemí Paulet, Jaume Muñoz Mateo, Antonio Mayol Sánchez, Ricardo Guilleumas, Montserrat |
Keywords: | Física Superconductivitat Physics Superconductivity |
Issue Date: | 18-Jan-2016 |
Publisher: | Institute of Physics Pub. |
Abstract: | 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. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1088/1367-2630/18/1/015003 |
It is part of: | New Journal of Physics, 2016, vol. 18, p. 015003 |
URI: | http://hdl.handle.net/2445/100686 |
Related resource: | http://dx.doi.org/10.1088/1367-2630/18/1/015003 |
ISSN: | 1367-2630 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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655267.pdf | 1.86 MB | Adobe PDF | View/Open |
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