Coherent Quantum Phase Slip in two-component bosonic Atomtronic Circuits
| Autor: | Gallemí, A., Mateo, A. Muñoz, Mayol, R., Guilleumas, M. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | New J. Phys. 18, 015003 (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1367-2630/18/1/015003 |
| Popis: | 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 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 non-linearity 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 $^{87}\mbox{Rb}$, since we have used values for the physical parameters currently available in laboratories. Comment: 16 pages, 10 figures |
| Databáze: | arXiv |
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