artwork with formulas in the atrium of IFW


We theoretically study the properties of topological systems and explore new types of topological phases (like the ones shown in the figures). These include topological insulators and superconductors, but also gapless systems such as Weyl semimetals. Part of our focus is on determining the stability of topological phases to perturbations such as disorder, as well as studying their dynamical properties.

Group members

Students:                        
Sanjib Kumar Das
Selma Franca
Hui Liu
Bhargava B.

Previous members:                    
Konstantinos Ladovrechis
Silas Floeter
Philipp Heilmann
 

Visiting scientists:           
Dr. Ali Moghaddam



 
Postdocs:                    
Dr. Jhih-Shih You



 

Five Highlights:

  1. Anomalous levitation and annihilation in Floquet topological insulators, arXiv:2003.02266
  2. Simulating Floquet topological phases in static systems, arXiv:2001.08217
  3. Topological phases without crystalline counterparts, Phys. Rev. Lett. 123, 196401 (2019)
  4. Partial lattice defects in higher order topological insulators, Phys. Rev. Lett. 123, 266802 (2019)
  5. Localization counteracts decoherence in noisy Floquet topological chains,  Phys. Rev. Lett. 120, 216801 (2018)

 

Name                              Dr. Cosma Fulga
AddressIFW Dresden
Helmholtzstraße 20
01069 Dresden
Phone Number+49-351-4659-737
Emaili.c.fulga(at)ifw-dresden.de