Dr. Varjas DánielPDF icon CV letöltése

Tudományos főmunkatárs

Az Amorf topologikus anyagok csoport vezetője.
Head
Amorphous Topological Matter
Amorf topologikus anyagok
Szoba: 
F III. 1. em 3.
Email: 
varjas.daniel@ttk.bme.hu
Telefon: 
+36 1 463 2147

Oktatás

2024/25 Fall semester

Mathematical Methods in Physics BMETE11AP58

Practice Session T1, Thursday 12:15-13:45, room KF87

Kutatás

My research focuses on disordered topological insulators and superconductors, with special focus on quasicrystalline and amorphous materials.

Topological phases of matter are distinguished by robust properties that are insensitive to perturbations. These include quantized responses, perfectly conducting interfaces, and exactly zero energy modes with potential technological applications, such as fault-tolerant quantum computation. During the past decade remarkable progress was made in theoretically predicting and experimentally realizing a vast number of new topological phases, including higher order and crystalline topological phases. However, amorphous matter lies outside of this framework, despite the fact that such materials are very common and of high technological importance. This project addresses the open questions:

• What new topological phases can exist in amorphous materials?

• How to apply insights from simplified models to first principles calculations describing real materials?

The first goal of the project is to develop theoretical approaches to capture topology and symmetry in disordered materials, and to construct simple models to demonstrate the universal properties of new amorphous topological phases. The second goal is to model experimentally relevant amorphous materials and their physical properties, such as electromagnetic responses or angle-resolved photoemission spectra (ARPES).

 
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