| Issue |
EPL
Volume 139, Number 5, September 2022
|
|
|---|---|---|
| Article Number | 50002 | |
| Number of page(s) | 4 | |
| Section | General physics | |
| DOI | https://doi.org/10.1209/0295-5075/ac8cae | |
| Published online | 02 September 2022 | |
Josephson oscillation in the open two-site Bose-Hubbard system
Kirensky Institute of Physics - 660036, Krasnoyarsk, Russia and Siberian Federal University - 660041, Krasnoyarsk, Russia
(a) andrey.r.kolovsky@gmail.com (corresponding author)
Received: 17 February 2022
Accepted: 25 August 2022
We analyze Josephson’s oscillation of Bose particles in the open two-site Bose-Hubbard system. First, we excite the system from the vacuum state into a state suitable for observing the oscillation by using a special protocol for external driving. Next, we switch off the driving and observe the oscillation. It is shown that the main mechanism for the decay of Josephson’s oscillation is the dephasing due to the fluctuating number of particles in open systems. An analytical estimate for the decay time is obtained.
© 2022 EPLA
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.