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Journal articles
An atomtronic flux qubit: A ring lattice of Bose-Einstein condensates interrupted by three weak links
Abstract : 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. © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Keywords :
Lattice potentials
Exact diagonalization
Flux qubits
Bose-Einstein condensation
Hubbard model
Light modulators
Quantum computers
Quantum electronics
Quantum interference devices
Statistical mechanics
Bose Hubbard model
Bose-Einstein condensates
Physical systems
Quantum fluctuation
Spatial light modulators
Quantum theory
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01372797
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, September 27, 2016 - 4:30:30 PM
Last modification on : Tuesday, March 3, 2020 - 10:45:39 AM
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, September 27, 2016 - 4:30:30 PM
Last modification on : Tuesday, March 3, 2020 - 10:45:39 AM
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