Please use this identifier to cite or link to this item:
|Title:||Effective dynamics of cold atoms flowing in two ring-shaped optical potentials with tunable tunneling|
|Citation:||Aghamalyan, D., Amico, L., Kwek, L.C. (2013-12-13). Effective dynamics of cold atoms flowing in two ring-shaped optical potentials with tunable tunneling. Physical Review A - Atomic, Molecular, and Optical Physics 88 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.88.063627|
|Abstract:||We study the current dynamics of coupled atomic condensates flowing in two ring-shaped optical potentials. We provide a specific setup where the ring-ring coupling can be tuned in an experimentally feasible way. It is demonstrated that the imaginary time effective action of the system in a weak coupling regime provides a two-level-system dynamics for the phase slip across the two rings. Through two-mode Gross- Pitaevskii mean-field equations, the real-time dynamics of the population imbalance and the phase difference between the two condensates is thoroughly analyzed analytically, as a function of the relevant physical parameters of the system. In particular, we find that the macroscopic quantum self-trapping phenomenon is induced in the system if the flowing currents assume a nonvanishing difference. © 2013 American Physical Society.|
|Source Title:||Physical Review A - Atomic, Molecular, and Optical Physics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Aug 13, 2018
WEB OF SCIENCETM
checked on Jul 4, 2018
checked on Aug 17, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.