197 citations · 493 across the 9 of their papers we have counts for
9 papers
From quantum geometry to non-linear optics and gerbes: Recent advances in topological band theory
Tomáš Bzdušek
Topological principles constitute at present an integral component of condensed matter physics, permeating the modern characterization of electronic states while also guiding mater…
Superconductivity in hyperbolic spaces: Cayley trees, hyperbolic continuum, and BCS theory
Mykhailo Pavliuk, Tomáš Bzdušek, Askar Iliasov
We investigate -wave superconductivity in negatively curved geometries, focusing on Cayley trees and the hyperbolic plane. Using a self-consistent Bogoliubov-de Gennes approach…
Superconductivity in hyperbolic spaces: Regular hyperbolic lattices and Ginzburg-Landau theory
Vladimir Bashmakov, Askar Iliasov, Tomáš Bzdušek +1
We study -wave superconductivity in hyperbolic spaces using the Bogoliubov-de Gennes theory for discrete hyperbolic lattices and the Ginzburg-Landau theory for the continuous hy…
Delicate Wannier insulators
Zoltán Guba, Aris Alexandradinata, Tomáš Bzdušek
The defining feature of topological insulators is that their valence states are not continuously deformable to a suitably defined atomic limit without breaking the symmetry or clos…
Hyperbolic Spin Liquids
Patrick M. Lenggenhager, Santanu Dey, Tomáš Bzdušek +1
Hyperbolic lattices present a unique opportunity to venture beyond the conventional paradigm of crystalline many-body physics and explore correlated phenomena in negatively curved…
Symmetry breaking and spectral structure of the interacting Hatano-Nelson model
Song-Bo Zhang, M. Michael Denner, Tomáš Bzdušek +2
We study the Hatano-Nelson model, i.e., a one-dimensional non-Hermitian chain of spinless fermions with nearest-neighbour nonreciprocal hopping, in the presence of repulsive neares…
Topological Classification of Non-Hermitian Hamiltonians
Charles C. Wojcik, Xiao-Qi Sun, Tomáš Bzdušek +1
We revisit the problem of classifying topological band structures in non-Hermitian systems. Recently, a solution has been proposed, which is based on redefining the notion of energ…
Non-Abelian reciprocal braiding of Weyl points and its manifestation in
Adrien Bouhon, QuanSheng Wu, Robert-Jan Slager +3
Weyl semimetals in three-dimensional crystals provide the paradigm example of topologically protected band nodes. It is usually taken for granted that a pair of colliding Weyl poin…
Alice string in Non-Hermitian Systems
Xiao-Qi Sun, Charles C. Wojcik, Shanhui Fan +1
Alice string is a topological defect with a very peculiar feature. When a defect with a monopole charge encircles an Alice string, the monopole charge changes sign. In this work, w…