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...

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Main Authors: Kwek, Leong-Chuan, Aghamalyan, D, Nguyen, N T, Auksztol, F, Gan, K S, Valado, M Martinez, Condylis, P C, Dumke, R, Amico, L
Other Authors: Institute of Advanced Studies
Format: Article
Language:English
Published: 2018
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Online Access:https://hdl.handle.net/10356/90021
http://hdl.handle.net/10220/46489
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-900212020-09-26T21:55:41Z An atomtronic flux qubit : a ring lattice of Bose–Einstein condensates interrupted by three weak links Kwek, Leong-Chuan Aghamalyan, D Nguyen, N T Auksztol, F Gan, K S Valado, M Martinez Condylis, P C Dumke, R Amico, L Institute of Advanced Studies Flux Qubit Atomtronics Quantum Interference Device DRNTU::Science::Physics 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. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2018-10-31T09:19:12Z 2019-12-06T17:38:54Z 2018-10-31T09:19:12Z 2019-12-06T17:38:54Z 2016 Journal Article Aghamalyan, D., Nguyen, N. T., Auksztol, F., Gan, K. S., Valado, M. M., Condylis, P. C., . . . Amico, L. (2016). An atomtronic flux qubit : a ring lattice of Bose–Einstein condensates interrupted by three weak links. New Journal of Physics, 18(7), 075013-. doi:10.1088/1367-2630/18/7/075013 1367-2630 https://hdl.handle.net/10356/90021 http://hdl.handle.net/10220/46489 10.1088/1367-2630/18/7/075013 en New Journal of Physics © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. 12 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Flux Qubit
Atomtronics Quantum Interference Device
DRNTU::Science::Physics
spellingShingle Flux Qubit
Atomtronics Quantum Interference Device
DRNTU::Science::Physics
Kwek, Leong-Chuan
Aghamalyan, D
Nguyen, N T
Auksztol, F
Gan, K S
Valado, M Martinez
Condylis, P C
Dumke, R
Amico, L
An atomtronic flux qubit : a ring lattice of Bose–Einstein condensates interrupted by three weak links
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.
author2 Institute of Advanced Studies
author_facet Institute of Advanced Studies
Kwek, Leong-Chuan
Aghamalyan, D
Nguyen, N T
Auksztol, F
Gan, K S
Valado, M Martinez
Condylis, P C
Dumke, R
Amico, L
format Article
author Kwek, Leong-Chuan
Aghamalyan, D
Nguyen, N T
Auksztol, F
Gan, K S
Valado, M Martinez
Condylis, P C
Dumke, R
Amico, L
author_sort Kwek, Leong-Chuan
title 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_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_sort atomtronic flux qubit : a ring lattice of bose–einstein condensates interrupted by three weak links
publishDate 2018
url https://hdl.handle.net/10356/90021
http://hdl.handle.net/10220/46489
_version_ 1681058094594916352