An atomtronic flux qubit: a ring lattice of Bose–Einstein condensates interrupted by three weak links
We study a physical system consisting of a Bose–Einstein condensate confined to a ring shaped lattice potential interrupted by three weak links. The system is assumed to be driven by an effective flux piercing the ring lattice. By employing path integral techniques, we explore the effective quantum...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2016-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/18/7/075013 |
| _version_ | 1797750941762453504 |
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| author | D Aghamalyan N T Nguyen F Auksztol K S Gan M Martinez Valado P C Condylis L-C Kwek R Dumke L Amico |
| author_facet | D Aghamalyan N T Nguyen F Auksztol K S Gan M Martinez Valado P C Condylis L-C Kwek R Dumke L Amico |
| author_sort | D Aghamalyan |
| collection | DOAJ |
| description | We study a physical system consisting of a Bose–Einstein condensate confined to a ring shaped lattice potential interrupted by three weak links. The system is assumed to be driven by an effective flux piercing the ring lattice. By employing path integral techniques, we explore the effective quantum dynamics of the system in a pure quantum phase dynamics regime. Moreover, the effects of the density’s quantum fluctuations are studied through exact diagonalization analysis of the spectroscopy of the Bose–Hubbard model. We demonstrate that a clear two-level system emerges by tuning the magnetic flux at degeneracy. The lattice confinement, platform for the condensate, is realized experimentally employing a spatial light modulator. |
| first_indexed | 2024-03-12T16:41:06Z |
| format | Article |
| id | doaj.art-054887e96ed4468bbbc35a99dedaaf08 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:41:06Z |
| publishDate | 2016-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-054887e96ed4468bbbc35a99dedaaf082023-08-08T14:29:48ZengIOP PublishingNew Journal of Physics1367-26302016-01-0118707501310.1088/1367-2630/18/7/075013An atomtronic flux qubit: a ring lattice of Bose–Einstein condensates interrupted by three weak linksD Aghamalyan0N T Nguyen1F Auksztol2K S Gan3M Martinez Valado4P C Condylis5L-C Kwek6R Dumke7L Amico8Institut de Physique de Rennes , UMR 6251 du CNRS and Université de Rennes 1, F-35042 Rennes Cedex, France; Centre for Quantum Technologies, National University of Singapore , 117543, SingaporeCentre for Quantum Technologies, National University of Singapore , 117543, SingaporeCentre for Quantum Technologies, National University of Singapore , 117543, SingaporeCentre for Quantum Technologies, National University of Singapore , 117543, SingaporeCentre for Quantum Technologies, National University of Singapore , 117543, SingaporeCentre for Quantum Technologies, National University of Singapore , 117543, SingaporeCentre for Quantum Technologies, National University of Singapore , 117543, Singapore; National Institute of Education and Institute of Advanced Studies, Nanyang Technological University , 1 Nanyang Walk, 637616, SingaporeCentre for Quantum Technologies, National University of Singapore , 117543, SingaporeCentre for Quantum Technologies, National University of Singapore , 117543, Singapore; CNR-MATIS-IMM & Dipartimento di Fisica e Astronomia , Via S. Sofia 64, I-95127 Catania, Italy; Laboratori Nazionali del Sud, INFN, via S. Sofia 62, I-95123 Catania, ItalyWe study a physical system consisting of a Bose–Einstein condensate confined to a ring shaped lattice potential interrupted by three weak links. The system is assumed to be driven by an effective flux piercing the ring lattice. By employing path integral techniques, we explore the effective quantum dynamics of the system in a pure quantum phase dynamics regime. Moreover, the effects of the density’s quantum fluctuations are studied through exact diagonalization analysis of the spectroscopy of the Bose–Hubbard model. We demonstrate that a clear two-level system emerges by tuning the magnetic flux at degeneracy. The lattice confinement, platform for the condensate, is realized experimentally employing a spatial light modulator.https://doi.org/10.1088/1367-2630/18/7/075013atomtronics quantum interference deviceflux qubitring condensateatom circuits |
| spellingShingle | D Aghamalyan N T Nguyen F Auksztol K S Gan M Martinez Valado P C Condylis L-C Kwek R Dumke L Amico An atomtronic flux qubit: a ring lattice of Bose–Einstein condensates interrupted by three weak links New Journal of Physics atomtronics quantum interference device flux qubit ring condensate atom circuits |
| title | An atomtronic flux qubit: a ring lattice of Bose–Einstein condensates interrupted by three weak links |
| title_full | An atomtronic flux qubit: a ring lattice of Bose–Einstein condensates interrupted by three weak links |
| title_fullStr | An atomtronic flux qubit: a ring lattice of Bose–Einstein condensates interrupted by three weak links |
| title_full_unstemmed | An atomtronic flux qubit: a ring lattice of Bose–Einstein condensates interrupted by three weak links |
| title_short | An atomtronic flux qubit: a ring lattice of Bose–Einstein condensates interrupted by three weak links |
| title_sort | atomtronic flux qubit a ring lattice of bose einstein condensates interrupted by three weak links |
| topic | atomtronics quantum interference device flux qubit ring condensate atom circuits |
| url | https://doi.org/10.1088/1367-2630/18/7/075013 |
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