Non-Abelian hyperbolic band theory from supercells

PM Lenggenhager, J Maciejko, T Bzdušek - Physical Review Letters, 2023‏ - APS
Wave functions on periodic lattices are commonly described by Bloch band theory. Besides
Abelian Bloch states labeled by a momentum vector, hyperbolic lattices support non-Abelian …

Hyperbolic non-Abelian semimetal

T Tummuru, A Chen, PM Lenggenhager, T Neupert… - Physical Review Letters, 2024‏ - APS
We extend the notion of topologically protected semi-metallic band crossings to hyperbolic
lattices in a negatively curved plane. Because of their distinct translation group structure …

Hyperbolic spin liquids

PM Lenggenhager, S Dey, T Bzdušek… - arxiv preprint arxiv …, 2024‏ - arxiv.org
Hyperbolic lattices present a unique opportunity to venture beyond the conventional
paradigm of crystalline many-body physics and explore correlated phenomena in negatively …

Encoded quantum gates by geometric rotation on tessellations

Y Wang, Y Xu, ZW Liu - arxiv preprint arxiv:2410.18713, 2024‏ - arxiv.org
We utilize the symmetry groups of regular tessellations on two-dimensional surfaces of
different constant curvatures, including spheres, Euclidean planes and hyperbolic planes, to …

Emerging avenues in band theory: multigap topology and hyperbolic lattices

PM Lenggenhager - 2023‏ - research-collection.ethz.ch
One of the cornerstones of condensed matter physics, the description of wave functions on
periodic lattices in terms of energy bands of Bloch states, serves as the unifying thread in …