Disorder and topology in driven quantum systems

PhD type: 
Doctoral School of Physical Sciences
Year: 
2024/2025/1
Unit: 
Department of Theoretical Physics, Institute of Physics
Address of unit: 
1111 Budapest, Műegyetem rakpart 8.
Description: 

The theory of topological insulators and superconductors, developed over the last 3 decades, plays a central role in contemporary condensed-matter physics. These materials have an insulating bulk with topological invariants, and host "edge" states on their boundaries which give rise to universal, quantized surface conduction, even in the presence of onsite disorder (that would be expected to lead to their Anderson localization). The theory can also be applied to periodically driven systems, but its consequences here are less known. The PhD research of the applicant will aim to explore the interplay of topological features and disorder in periodically driven systems, using the toolkit of theoretical physics. Topological pumps, quantum walks, are some of the model systems to be explored.  

Requirements: 

Solid foundations in quantum mechanics, band theory of electrical conduction. Experience with numerical programming in python.

State: 
Végleges
Témavezető
Name: 
ASBÓTH János K.
Email: 
asboth.janos@ttk.bme.hu
Institute: 
Department of Theoretical Physics, Institute of Physics
Assignment: 
Associate professor
Scientific degree: 
PhD
Stipendicum Hungaricum: 
Yes