activity
20152022
most citedTopologically protected defect states in open photonic systems with non-hermitian charge-conjugation and parity-time symmetry

388 citations · 536 across the 8 of their papers we have counts for

collaborators

8 papers

quant-ph2022★ 11 cited

Husimi dynamics generated by non-Hermitian Hamiltonians

Katherine Holmes, Wasim Rehman, Simon Malzard +1

The dynamics generated by non-Hermitian Hamiltonians are often less intuitive than those of conventional Hermitian systems. Even for models as simple as a complexified harmonic osc…

quant-ph2022★ 10 cited

Semiclassical Husimi distributions for non-Hermitian quantum systems

Joseph Hall, Simon Malzard, Eva-Maria Graefe

We construct a semiclassical phase-space density of Schur vectors in non-Hermitian quantum systems. Each Schur vector is associated to a single Planck cell. The Schur states are or…

quant-ph2022

Landau-Zener transitions through a pair of higher order exceptional points

Rishindra Melanathuru, Simon Malzard, Eva-Maria Graefe

Non-Hermitian quantum systems with explicit time dependence are of ever-increasing importance. There are only a handful of models that have been analytically studied in this contex…

physics.optics2019★ 12 cited

Nonhermitian defect states from lifetime differences

Martí Bosch, Simon Malzard, Martina Hentschel +1

Nonhermitian systems provide new avenues to create topological defect states. An unresolved general question is how much the formation of these states depends on asymmetric backsca…

physics.optics2018★ 41 cited

Nonlinear mode competition and symmetry-protected power oscillations in topological lasers

Simon Malzard, Henning Schomerus

Topological photonics started out as a pursuit to engineer systems that mimic fermionic single-particle Hamiltonians with symmetry-protected modes, whose number can only change in…

physics.optics2018★ 41 cited

Bulk and edge-state arcs in non-hermitian coupled-resonator arrays

Simon Malzard, Henning Schomerus

We describe the formation of bulk and edge arcs in the dispersion relation of two-dimensional coupled-resonator arrays that are topologically trivial in the hermitian limit. Each r…