Hi there! I am Tomáš Bzdušek, currently a professor leading the group Theory of Topological Matter at the University of Zurich, Switzerland. You can read more about my research in my profile. On these pages, which served as my personal website until 2023, I have collected my own research work and, since 2023, also that of my students and postdocs. In the “Miscellaneous” tab I have collected further documents, including recorded talks, code, and my theses.

Note that the news posts on this page are no longer updated. For current news, please follow our group’s website.

Latest Posts

Simulating hyperbolic space on a circuit board
Curved spaces are usually associated with high-energy physics and cosmology. However, through the possibility of tabletop experiments emulating curved spaces and the interest in related synthetic matter, they have become relevant in condensed matter physics as well.
Last updated on Nov 14, 2026 1 min read
Simulating hyperbolic space on a circuit board
Theorists discover new paradigm of topological band structures
After the experimental discovery of topological insulators, the notion of what actually constitutes a topological band insulator has been refined in many ways. In their recent work, Aleksandra Nelson, Titus Neupert, Tomáš Bzdušek, and Aris Alexandradinata identify topological phases among insulators that were previously thought to be trivial.
Last updated on Nov 14, 2026 2 min read
Theorists discover new paradigm of topological band structures
Non-Abelian topology reveals a relation between triple points and nodal links
Electron band structures, which describe the energy-momentum relation for electrons in solids, can exhibit robust crossings called “nodes”. Such nodes famously occur in graphene or in Weyl semimetals, and often facilitate special transport phenomena, such as the decrease of resistivity of Weyl semimetals in an applied parallel magnetic field.
Last updated on Nov 14, 2026 2 min read
Non-Abelian topology reveals a relation between triple points and nodal links

Latest Publications

Superconductivity in hyperbolic spaces: Cayley trees, hyperbolic continuum, and BCS theory
We investigate $s$-wave superconductivity in negatively curved geometries, focusing on Cayley trees and the hyperbolic plane. Using a …
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Superconductivity in hyperbolic spaces: Cayley trees, hyperbolic continuum, and BCS theory
Higher-Form Topology in Band Structures
Topology provides a framework for describing phases of matter whose distinction is encoded not only in local properties, but also in …
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Higher-Form Topology in Band Structures
Engineering symmetry-protected topological states in waveguide arrays
The topological classification of a system depends on the discrete symmetries of its Hamiltonian. In Floquet photonic waveguide arrays, …
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Engineering symmetry-protected topological states in waveguide arrays
Universal aspects of bulk density of states in non-Hermitian lattices
Non-Hermitian lattice Hamiltonians generally exhibit strong boundary sensitivity, with periodic and open boundary conditions producing …
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Universal aspects of bulk density of states in non-Hermitian lattices
Topological characterization of multifold band degeneracies in Altland-Zirnbauer symmetry classes
Topological band degeneracies are conventionally characterized by invariants defined on enclosing spheres over which the energy …
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Topological characterization of multifold band degeneracies in Altland-Zirnbauer symmetry classes
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