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

Master students:                        
Giovanni Castorina
Ihor Nimyi
Vladyslav Verteletskyi

PhD students:                    
Bhargava B.
Gabriele Naselli
Hui Liu
Raghav Chaturvedi

Dr. Viktor Könye

Previous members:                   
Konstantinos Ladovrechis
Silas Flöter
Philipp Heilmann
Dr. Jhih-Shih You
Dr. Ali Moghaddam
Sanjib Kumar Das
Selma Franca

Five Highlights:

  1. Non-Hermitian physics without gain or loss: the skin effect of reflected waves, arXiv:2111.02263
  2. Non-Hermitian skin effect of dislocations and its topological origin, arXiv:2106.04567
  3. Topological defect engineering and PT-symmetry in non-Hermitian electrical circuits, Phys. Rev. Lett. 126, 215302 (2021)
  4. Bulk-boundary-defect correspondence at disclinations in rotation-symmetric topological insulators and superconductors, SciPost Phys. 10, 092 (2021)
  5. Temperature enhancement of thermal Hall conductance quantization, Phys. Rev. Lett. 125, 236802 (2020)


    Name                              Dr. Cosma Fulga
    AddressIFW Dresden
    Helmholtzstraße 20
    01069 Dresden
    Phone Number+49-351-4659-737