184 citations · 2.1k across the 37 of their papers we have counts for
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Topological defect engineering and PT-symmetry in non-Hermitian electrical circuits
Alexander Stegmaier, Stefan Imhof, Tobias Helbig +14
We employ electric circuit networks to study topological states of matter in non-Hermitian systems enriched by parity-time symmetry and chiral symmetry anti-$\mathca…
Optimal Measurement of Field Properties with Quantum Sensor Networks
Timothy Qian, Jacob Bringewatt, Igor Boettcher +2
We consider a quantum sensor network of qubit sensors coupled to a field analytically parameterized by the vector of parameters . The qubit sensors are fi…
Infrared fixed points of higher-spin fermions in topological semimetals
Igor Boettcher
We determine the fate of interacting fermions described by the Hamiltonian in three-dimensional topological semimetals with linear band crossing, whe…
Critical Theory for the Breakdown of Photon Blockade
Jonathan B. Curtis, Igor Boettcher, Jeremy T. Young +4
Photon blockade is the result of the interplay between the quantized nature of light and strong optical nonlinearities, whereby strong photon-photon repulsion prevents a quantum op…
d-wave superconductivity and Bogoliubov-Fermi surfaces in Rarita-Schwinger-Weyl semimetals
Julia M. Link, Igor Boettcher, Igor F. Herbut
We uncover the properties of complex tensor (d-wave) superconducting order in three-dimensional Rarita-Schwinger-Weyl semimetals that host pseudospin-3/2 fermions at a fourfold lin…