7 papers
Probing topological phase transitions via nonlinear Hall response in strained moiré dice lattice
Gourab Paul, Srijata Lahiri, Bilal Tanatar +1
Valley polarized twisted bilayer dice lattice hosts topologically nontrivial flat bands far from charge neutrality due to broken time reversal symmetry, whereas the ones in the vic…
Localization Transitions in a Half-Filled Helical Aubry-André Model
Taylan Yildiz, B. Tanatar, Balázs Hetényi +1
We study localization in a one-dimensional quasiperiodic lattice obtained by extending the Aubry-André model with an additional th-neighbor hopping term of strength . Thi…
Floquet generation of hybrid-order topology and -like bipolar localization
Koustav Roy, Latu Kalita, B. Tanatar +1
Higher order topology, in the form of the emergence of corner modes, is observed in two dimensions when crystalline symmetries are superposed on the Altland-Zirnbauer classificatio…
Floquet Non-Bloch Formalism for a Non-Hermitian Ladder: From Theoretical Framework to Topolectrical Circuits
Koustav Roy, Dipendu Halder, Koustabh Gogoi +2
Periodically driven systems intertwined with non-Hermiticity opens a rich arena for topological phases that transcend conventional Hermitian limits. The physical significance of th…
Reentrant Localization Transition in a Quasiperiodic Thue-Morse Chain
Taylan Yildiz, B. Tanatar
We investigate single-particle localization in a dimerized Su--Schrieffer--Heeger (SSH) chain with a quasiperiodic onsite potential masked by the deterministic Thue--Morse sequence…
Localization and persistent currents in a quasiperiodic disordered helical lattice
Taylan Yildiz, B. Tanatar
We investigate localization and persistent currents in a helical tight-binding lattice subject to two independent magnetic fluxes and a quasiperiodic on-site potential. Working wit…