Phase Transitions and Topological Transport in Floquet-Bloch systems

QUEST Center event
No
Speaker
Iliya Esin (Technion)
Date
01/11/2018 - 15:30 - 14:30Add to Calendar 2018-11-01 14:30:00 2018-11-01 15:30:00 Phase Transitions and Topological Transport in Floquet-Bloch systems Time-periodic driving serves as a promising tool for exploring new phases of quantum matter In particular, it can be used to induce topological phenomena in conventional, non-topological systems. In this talk, I will discuss semiconductors driven with a resonant coherent light – necessary ingredients for the creation of Floquet topological insulators. I will analyze the steady-states emergent in such systems in the presence of natural dissipation mechanisms including phonon-relaxation, photo-emission and Auger processes, as well as coupling to external leads. I will show that despite the highly non-equilibrium nature of these systems, by judicially choosing the properties of the external environments, their steady states can exhibit some of the hallmark phenomena of contemporary condensed matter: topological transport and phase transitions. Resnick (#209) - room 210 Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Resnick (#209) - room 210
Abstract

Time-periodic driving serves as a promising tool for exploring new phases of quantum matter In particular, it can be used to induce topological phenomena in conventional, non-topological systems. In this talk, I will discuss semiconductors driven with a resonant coherent light – necessary ingredients for the creation of Floquet topological insulators. I will analyze the steady-states emergent in such systems in the presence of natural dissipation mechanisms including phonon-relaxation, photo-emission and Auger processes, as well as coupling to external leads. I will show that despite the highly non-equilibrium nature of these systems, by judicially choosing the properties of the external environments, their steady states can exhibit some of the hallmark phenomena of contemporary condensed matter: topological transport and phase transitions.

Last Updated Date : 17/10/2018