143 citations · 186 across the 3 of their papers we have counts for
3 papers
Fano Resonances in Flat Band Networks
Ajith Ramachandran, Carlo Danieli, Sergej Flach
Linear wave equations on Hamiltonian lattices with translational invariance are characterized by an eigenvalue band structure in reciprocal space. Flat band lattices have at least…
Topological flat Wannier-Stark bands
Andrey R. Kolovsky, Ajith Ramachandran, Sergej Flach
We analyze the spectrum and eigenstates of a quantum particle in a bipartite two-dimensional tight-binding dice network with short range hopping under the action of a dc bias. We f…
Chiral Flat Bands: Existence, Engineering and Stability
Ajith Ramachandran, Alexei Andreanov, Sergej Flach
We study flat bands in bipartite tight-binding networks with discrete translational invariance. Chiral flat bands with chiral symmetry eigenenergy E = 0 and host compact localized…