31 citations · 42 across the 5 of their papers we have counts for
5 papers
ScatterWorks: A Python package for building and solving scattering network models
R. Johanna Zijderveld, Hélène Spring, Anton R. Akhmerov
Network models provide an efficient framework for studying non-interacting transport and wave-propagation phenomena in disordered and topological systems. We introduce ScatterWorks…
Isotropic 3D topological phases with broken time reversal symmetry
Helene Spring, Anton R. Akhmerov, Daniel Varjas
Axial vectors, such as current or magnetization, are commonly used order parameters in time-reversal symmetry breaking systems. These vectors also break isotropy in three dimension…
Lack of near-sightedness principle in non-Hermitian systems
Helene Spring, Viktor Könye, Anton R. Akhmerov +1
The non-Hermitian skin effect is a phenomenon in which an extensive number of states accumulates at the boundaries of a system. It has been associated to nontrivial topology, with…
Phase transitions of wave packet dynamics in disordered non-Hermitian systems
Helene Spring, Viktor Könye, Fabian A. Gerritsma +2
Disorder can localize the eigenstates of one-dimensional non-Hermitian systems, leading to an Anderson transition with a critical exponent of 1. We show that, due to the lack of en…
Amorphous topological phases protected by continuous rotation symmetry
Helene Spring, Anton R. Akhmerov, Daniel Varjas
Protection of topological surface states by reflection symmetry breaks down when the boundary of the sample is misaligned with one of the high symmetry planes of the crystal. We de…