94 citations · 509 across the 31 of their papers we have counts for
31 papers
Flat band and Bulk-Boundary correspondence in a non-Hermitian trimerized lattice model with generic boundary conditions
Supriyo Ghosh, Pijush K. Ghosh, Shreekantha Sil
We consider a Su-Schrieffer-Heeger(SSH)-type trimer model with next-nearest-neighbor(NNN) interaction and balanced loss-gain(BLG) to study the combined effect of lattice symmetries…
Interaction and non-Hermiticity controlled transmission in extended Su-Schrieffer-Heeger models
Syeda Rafisa Rahaman, Shreekantha Sil, Nilanjan Bondyopadhaya
We study the transport characteristics of an extended version of the Su-Schrieffer-Heeger (SSH) model with next-nearest-neighbor (NNN) interactions and non-Hermitian onsite energie…
Exact and mean-field analysis of the role of Hubbard interactions on flux driven circular current in a quantum ring
Rahul Samanta, Santanu K. Maiti, Shreekantha Sil
We investigate circular current in both ordered and disordered Hubbard quantum rings threaded by magnetic flux, employing exact diagonalization and the Hartree-Fock mean-field appr…
Edge states and persistent current in a PT-symmetric extended Su-Schrieffer-Heeger model with generic boundary conditions
Supriyo Ghosh, Pijush K. Ghosh, Shreekantha Sil
We consider a generalization of the Su-Schrieffer-Heeger(SSH) model by including next-nearest neighbour(NNN) interaction and balanced loss-gain(BLG), and subjecting the whole syste…
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…
Engineering topological phase transition and Aharonov-Bohm caging in a flux-staggered lattice
Amrita Mukherjee, Atanu Nandy, Shreekantha Sil +1
A tight binding network of diamond shaped unit cells trapping a staggered magnetic flux distribution is shown to exhibit a topological phase transition under a controlled variation…