153 citations · 451 across the 10 of their papers we have counts for
10 papers
Flat-band-based multifractality in the all-band-flat diamond chain
Aamna Ahmed, Ajith Ramachandran, Ivan M. Khaymovich +1
We study the effect of quasiperiodic Aubry-André disorder on the energy spectrum and eigenstates of a one-dimensional all-bands-flat (ABF) diamond chain. The ABF diamond chain poss…
Fano Resonances in Quantum Transport with Vibrations
Ajith Ramachandran, Michael Genkin, Auditya Sharma +3
Quantum mechanical scattering involving continuum states coupled to a scatterer with a discrete spectrum gives rise to Fano resonances. Here we consider scatterers that possess int…
Transmission in a Fano-Anderson chain with a topological defect
Ritu Nehra, Ajith Ramachandran, Sebastian Wüster +1
The Fano-Anderson chain consists of a linear lattice with a discrete side-unit, and exhibits Fano-resonant scattering due to coupling between the discrete states of the side-unit w…
Interplay of disorder and interactions in a flat-band supporting diamond chain
Nilanjan Roy, Ajith Ramachandran, Auditya Sharma
We systematically study the effect of disorder and interactions on a quasi-one dimensional diamond chain possessing flat bands. Disorder localizes all the single particle eigenstat…
Flat bands and entanglement in the Kitaev ladder
Ritu Nehra, Devendra Singh Bhakuni, Ajith Ramachandran +1
We report the existence of \emph{flat bands} in a p-wave superconducting Kitaev ladder. We identify two sets of parameters for which the Kitaev ladder sustains flat bands. These fl…
Unconventional Flatband Line States in Photonic Lieb Lattices
Shiqi Xia, Ajith Ramachandran, Shiqiang Xia +9
Flatband systems typically host "compact localized states"(CLS) due to destructive interference and macroscopic degeneracy of Bloch wave functions associated with a dispersionless…