activity
20032022
most citedTopological defect engineering and PT-symmetry in non-Hermitian electrical circuits

184 citations · 2.1k across the 37 of their papers we have counts for

collaborators

37 papers

cond-mat.mes-hall2022★ 90 cited

Hyperbolic Matter in Electrical Circuits with Tunable Complex Phases

Anffany Chen, Hauke Brand, Tobias Helbig +11

Curved spaces play a fundamental role in many areas of modern physics, from cosmological length scales to subatomic structures related to quantum information and quantum gravity. I…

cond-mat.mes-hall2022★ 68 cited

Hyperbolic Topological Band Insulators

David M. Urwyler, Patrick M. Lenggenhager, Igor Boettcher +3

Recently, hyperbolic lattices that tile the negatively curved hyperbolic plane emerged as a new paradigm of synthetic matter, and their energy levels were characterized by a band s…

cond-mat.stat-mech2022★ 36 cited

Selberg trace formula in hyperbolic band theory

Adil Attar, Igor Boettcher

We apply Selberg's trace formula to solve problems in hyperbolic band theory, a recently developed extension of Bloch theory to model band structures on experimentally realized hyp…

cond-mat.mes-hall2021★ 66 cited

Universality of Hofstadter butterflies on hyperbolic lattices

Alexander Stegmaier, Lavi K. Upreti, Ronny Thomale +1

Motivated by recent experimental breakthroughs in realizing hyperbolic lattices in superconducting waveguides and electric circuits, we compute the Hofstadter butterfly on regular…

cond-mat.other2021★ 124 cited

Simulating hyperbolic space on a circuit board

Patrick M. Lenggenhager, Alexander Stegmaier, Lavi K. Upreti +12

The Laplace operator encodes the behavior of physical systems at vastly different scales, describing heat flow, fluids, as well as electric, gravitational, and quantum fields. A ke…

quant-ph2021★ 70 cited

Circuit Quantum Electrodynamics in Hyperbolic Space: From Photon Bound States to Frustrated Spin Models

Przemyslaw Bienias, Igor Boettcher, Ron Belyansky +2

Circuit quantum electrodynamics is one of the most promising platforms for efficient quantum simulation and computation. In recent groundbreaking experiments, the immense flexibili…