dc.contributor.author |
Bandyopadhyay, Jayendra N. |
|
dc.contributor.author |
Sarkar, Tapomoy Guha |
|
dc.date.accessioned |
2024-02-10T04:22:03Z |
|
dc.date.available |
2024-02-10T04:22:03Z |
|
dc.date.issued |
2016-11 |
|
dc.identifier.uri |
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.94.053612 |
|
dc.identifier.uri |
http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14186 |
|
dc.description.abstract |
We investigate a variant of the Aubry-André-Harper (AAH) model corresponding to a bosonic optical lattice of ultracold atoms under an effective oscillatory magnetic field. In the limit of high-frequency oscillation, the system maybe approximated by an effective time-independent Hamiltonian. We have studied localization-delocalization transition exhibited by the effective Hamiltonian. The effective Hamiltonian is found to retain the tight-binding tridiagonal form in position space. In a striking contrast to the usual AAH model, this non-dual system shows an energy-dependent mobility edge—a feature which is usually reminiscent of Hamiltonians with beyond-nearest-neighbor hoppings in real space. Finally, we discuss possibilities of experimentally realizing this system in optical lattices. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
APS |
en_US |
dc.subject |
Physics |
en_US |
dc.subject |
Aubry-André-Harper (AAH) |
en_US |
dc.subject |
Magnetic field |
en_US |
dc.subject |
Optical lattices |
en_US |
dc.title |
Phase transition in an Aubry-André system with a rapidly oscillating magnetic field |
en_US |
dc.type |
Article |
en_US |