560 citations · 6.6k across the 130 of their papers we have counts for
130 papers
Eigenvalue sensitivity from eigenstate geometry near and beyond arbitrary-order exceptional points
Henning Schomerus
Systems with an effectively non-Hermitian Hamiltonian display an enhanced sensitivity to parametric and dynamic perturbations, which arises from the nonorthogonality of their eigen…
Flux-induced midgap states between strain-engineered flat bands
Dung Xuan Nguyen, Jake Arkinstall, Henning Schomerus
Half-integer quantized flux vortices appear in honeycomb lattices when the signs of an odd number of couplings around a plaquette are inverted. We show that states trapped at these…
Renormalization approach to the analysis and design of Hermitian and non-Hermitian interfaces
Henning Schomerus
I describe a concrete and efficient real-space renormalization approach that provides a unifying perspective on interface states in a wide class of Hermitian and non-Hermitian mode…
Fundamental constraints on the observability of non-Hermitian effects in passive systems
Henning Schomerus
Utilizing scattering theory, we quantify the consequences of physical constraints that limit the visibility of non-Hermitian effects in passive devices. The constraints arise from…
Noisy monitored quantum dynamics of ergodic multi-qubit systems
Henning Schomerus
I employ random-matrix methods to set up and solve statistical models of noisy nonunitary dynamics that appear in the context of monitored quantum systems. The models cover a range…
Three-fold way of entanglement dynamics in monitored quantum circuits
Tara Kalsi, Alessandro Romito, Henning Schomerus
We investigate the measurement-induced entanglement transition in quantum circuits built upon Dyson's three circular ensembles (circular unitary, orthogonal, and symplectic ensembl…