68 citations · 146 across the 16 of their papers we have counts for
5 papers · 1 filter
Disorder-Tailored Delocalization
Yeongjun Kim, Supriyo Ghosh, Sergej Flach
We derive disorder fields tailored by the details of a choice of a delocalized wave function. We first investigate the unidirectional Hatano-Nelson chain and its localization prope…
Nematic Phase Transitions in 1D Flat Band Condensates
Yeongjun Kim, Oleg I. Utesov, Alexei Andreanov +2
We investigate the ground-state properties of one-dimensional Gross-Pitaevskii flat-band lattices which are parametrized through their compact localized state (CLS) amplitudes. We…
Synchronization-induced flat bands in driven-dissipative dimer-waveguide chains
A. N. Osipov, I. G. Savenko, Sergej Flach +1
Flat bands in driven-dissipative systems offer a route to engineer strongly localized, long-lived excitations, yet their selective population via incoherent pumping remains an open…
Progress on artificial flat band systems: classifying, perturbing, applying
Carlo Danieli, Sergej Flach
We highlight recent progress in the study of artificial flat band systems with a threefold focus. First, we discuss single-particle flat band physics, which has advanced through th…
Spectral Topology and Delocalization in Disordered Hatano-Nelson Chains
Supriyo Ghosh, Sergej Flach
The unidirectional Hatano-Nelson chain serves as the fundamental non-Hermitian building block of the Su-Schrieffer-Heeger (SSH) model. We investigate its Anderson localization prop…