Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session L50: Dynamics - Many Body Theory
8:00 AM–11:00 AM,
Wednesday, March 4, 2020
Room: Mile High Ballroom 1C
Sponsoring
Unit:
DCMP
Chair: Hossein Dehghani, University of Maryland, College Park
Abstract: L50.00012 : Time dependent, external perturbations of Hubbard clusters with explicit many electron interactions and their implications
Presenter:
Adil-Gerai Kussow
(Univ of Connecticut - Storrs)
Authors:
Gayanath Fernando
(Univ of Connecticut - Storrs)
Adil-Gerai Kussow
(Univ of Connecticut - Storrs)
Kalum Palandage
(Physics, Trinity College)
using exact diagonalization and Lanczos method for Hubbard clusters in our search for time crystal and other behaviors such as
precursors to superconducting states.
It is possible to open time dependent breathing modes of the Hubbard Hamiltonian by exposing the cluster to electromagnetic radiation.
The analysis based on exact solutions of the Heisenberg equation demonstrates that it is possible to reach highly populated states with localized pairs of electrons having opposite spins (related to possible superconductivity). Since the system is principally time dependent in the pre-thermalization regime, it can be treated as an example of a time crystal.
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