Time-periodic ground-states
Date :
Friday, June 18th, 2021 4:00 pm - 5:00 pm
Place :
On Zoom (Please make a registration through the link below.)
Lecturer : Mr. Le Minh Cristian Affiliation : Department of Physics, The University of Tokyo Committee Chair : Osamu Sugino
e-mail: sugino@issp.u-tokyo.ac.jp
e-mail: sugino@issp.u-tokyo.ac.jp
While we cannot define a ground-state of time-dependent quantum systems in general, the time-periodic systems can overcome this issue due to the application of Floquet theory. In principle this application results in a static-like system, so it would follow that there can be an equivalent ground-state for these time-periodic systems. Indeed we can define one from the average-energy [1], and in this seminar we will explain the procedures for doing so. We will also explore the properties of this ground-state and how it can be applied to develop practical calculations.
[1]C. M. Le, R. Akashi, and S. Tsuneyuki, Defining a Well-Ordered Floquet Basis by the Average Energy, Physical Review A 102, 042212 (2020).Please access here for the registration
(Published on: Tuesday June 8th, 2021)