94 citations · 1k across the 56 of their papers we have counts for
57 papers
Engineering complete delocalization of single particle states in a class of one dimensional aperiodic lattices: a quantum dynamical study
Sougata Biswas, Arunava Chakrabarti
We study quantum dynamics of a wave packet on a class of one dimensional decorated aperiodic lattices, described within a tight binding formalism. We look for the possibility of fi…
Complete escape from localization on a hierarchical lattice: A Koch fractal with all states extended
Sougata Biswas, Arunava Chakrabarti
An infinitely large Koch fractal is shown to be capable of sustaining only extended, Bloch-like eigenstates, if certain parameters of the Hamiltonian describing the lattice are num…
Designer quantum states on a fractal substrate: compact localization, flat bands and the edge modes
Sougata Biswas, Arunava Chakrabarti
Compact localized single particle eigenstates on a deterministic fractal substrate, modelled by a triangular Sierpinski gasket of arbitrarily large size, are unravelled and examine…
Flat bands, edge states and possible topological phases in a branching fractal
Sougata Biswas, Amrita Mukherjee, Arunava Chakrabarti
We address the problem of analytically extracting a countable infinity of flat, non-dispersive bands in a periodic array of cells that comprise branching Vicsek geometries of highe…
Tailoring flat bands and topological phases in a multi-strand Creutz network
Amrita Mukherjee, Atanu Nandy, Shreekantha Sil +1
We prove that, a suitable correlation between the system parameters can trigger topological phase transition and flat bands in a multi strand Creutz ladder network, when a staggere…
Topological properties of a class of Su-Schrieffer-Heeger variants
Subhajyoti Bid, Arunava Chakrabarti
We investigate the edge states and the topological phase transitions in a class of tight binding lattices in one dimension where a Su-Schrieffer-Heeger (SSH) model exists in disgui…