The Macroscopic Quantum Phase of Ultracold Degenerate Gases in the Asymmetrical Two-Dimensional Magnetic LatticeECU Publications 2011
Document TypeJournal Article
FacultyFaculty of Computing, Health and Science
SchoolElectron Science Research Institute (ESRI)
AbstractWe investigate the existence of the macroscopic quantum phase in trapped ultracold quantum degenerate gases in an asymmetrical two-dimensional magnetic lattice. We show the key to adiabatically control the tunneling in the new two-dimensional magnetic lattice by means of external magnetic bias fields. In solving the system of coupled time-dependent differential equations, described here by the Boson Josephson Junctions (BJJs), we used an order parameter that includes both time-dependent variational parameters to describe the fractional population at each lattice site and the phase difference to quantify the macroscopic quantum phase signature. A dynamical oscillation of the fractional population and the phase difference at each individual lattice site is observed when solving the BJJs system.
Citation InformationAhmed M Abdelrahman, Mikhail Vasiliev and Karmal Alameh. "The Macroscopic Quantum Phase of Ultracold Degenerate Gases in the Asymmetrical Two-Dimensional Magnetic Lattice" (2011)
Available at: http://works.bepress.com/mikhail_vasiliev/6/