Coherent quantum phase slip in two-component bosonic atomtronic circuits
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, o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2015-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/18/1/015003 |
| _version_ | 1797750792036286464 |
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| author | A Gallemí A Muñoz Mateo R Mayol M Guilleumas |
| author_facet | A Gallemí A Muñoz Mateo R Mayol M Guilleumas |
| author_sort | A Gallemí |
| collection | DOAJ |
| description | 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 ^87 Rb, since we have used values for the physical parameters currently available in laboratories. |
| first_indexed | 2024-03-12T16:38:56Z |
| format | Article |
| id | doaj.art-e09b6d8ae5f54456ab2552e1d45fe267 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:38:56Z |
| publishDate | 2015-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-e09b6d8ae5f54456ab2552e1d45fe2672023-08-08T14:38:28ZengIOP PublishingNew Journal of Physics1367-26302015-01-0118101500310.1088/1367-2630/18/1/015003Coherent quantum phase slip in two-component bosonic atomtronic circuitsA Gallemí0A Muñoz Mateo1R Mayol2M Guilleumas3Departament d’Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona , E-08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia de la Universitat de Barcelona , IN2UB, E-08028 Barcelona, SpainDepartament d’Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona , E-08028 Barcelona, SpainDepartament d’Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona , E-08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia de la Universitat de Barcelona , IN2UB, E-08028 Barcelona, SpainDepartament d’Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona , E-08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia de la Universitat de Barcelona , IN2UB, E-08028 Barcelona, SpainCoherent 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 ^87 Rb, since we have used values for the physical parameters currently available in laboratories.https://doi.org/10.1088/1367-2630/18/1/015003phase slipcoherent couplingflux qubittoroidal geometryspinor condensate03.75.Hh |
| spellingShingle | A Gallemí A Muñoz Mateo R Mayol M Guilleumas Coherent quantum phase slip in two-component bosonic atomtronic circuits New Journal of Physics phase slip coherent coupling flux qubit toroidal geometry spinor condensate 03.75.Hh |
| title | Coherent quantum phase slip in two-component bosonic atomtronic circuits |
| title_full | Coherent quantum phase slip in two-component bosonic atomtronic circuits |
| title_fullStr | Coherent quantum phase slip in two-component bosonic atomtronic circuits |
| title_full_unstemmed | Coherent quantum phase slip in two-component bosonic atomtronic circuits |
| title_short | Coherent quantum phase slip in two-component bosonic atomtronic circuits |
| title_sort | coherent quantum phase slip in two component bosonic atomtronic circuits |
| topic | phase slip coherent coupling flux qubit toroidal geometry spinor condensate 03.75.Hh |
| url | https://doi.org/10.1088/1367-2630/18/1/015003 |
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