5 citations · 5 across the 9 of their papers we have counts for
9 papers
Emergence of charge and spin current in non-Hermitian quantum ring
Soumya Ranjan Padhi, Souvik Roy, Tapan Mishra
We investigate the charge and spin transport in a non-Hermitian ring of electrons subject to an external Zeeman field. By introducing non-Hermiticity through anti-Hermitian hopping…
Spin-aligned butterfly spectral map in Non-Hermitian quasicrystals
Soumya Ranjan Padhi, Souvik Roy, Debashree Chowdhury +1
The Non-Hermitian spinful Aubry-André-Harper (AAH) model in the presence of Rashba-type spin-orbit coupling (RSOC) and a spatially varying textured magnetic field is studied. Inter…
Non-Hermitian comb effect in coupled clean and quasiperiodic chains
Soumya Ranjan Padhi, Souvik Roy, Biswajit Paul +2
We study localization properties in a system of non-Hermitian quasiperiodic chain coupled to a uniform chain or clean chain by inter-chain hopping. We find that in the limit of wea…
Flux-driven charge and spin transport in a dimerized Hubbard ring with Fibonacci modulation
Souvik Roy, Soumya Ranjan Padhi, Tapan Mishra
We study quantum transport in a one-dimensional Hubbard ring with dimerized nearest-neighbor hoppings and a Fibonacci-modulated onsite potential. For non-interacting case our analy…
Coupling induced emergent topology in a two-leg fermionic ladder
Rajashri Parida, Biswajit Paul, Soumya Ranjan Padhi +1
We investigate the ground state properties of spinless fermions on a two leg ladder, by allowing the nearest-neighbour hopping dimerization in one leg and uniform hopping in the ot…
Emergence of distinct exact mobility edges in a quasiperiodic chain
Sanchayan Banerjee, Soumya Ranjan Padhi, Tapan Mishra
Mobility edges (MEs) constitute the energies separating the localized states from the extended ones in disordered systems. Going beyond this conventional definition, recent proposa…
Anomalous spectrum in a non-Hermitian quasiperiodic chain
Soumya Ranjan Padhi, Sanchayan Banerjee, Tanay Nag +1
The spectra of particles in disordered lattices can either be completely extended or localized or can be intermediate which hosts both the localized and extended states separated f…
Quasiperiodic and periodic extended Hatano-Nelson model: Anomalous complex-real transition and non-Hermitian skin effect
Soumya Ranjan Padhi, Ashirbad Padhan, Sanchayan Banerjee +1
We study the effect of quasiperiodic and periodic onsite potentials in a Hatano-Nelson model with next-nearest-neighbour hopping. By considering a non-reciprocal next-nearest-neigh…
Re-entrant topological phase transition in a non-Hermitian quasiperiodic lattice
Ashirbad Padhan, Soumya Ranjan Padhi, Tapan Mishra
We predict a re-entrant topological transition in a one dimensional non-Hermitian quasiperiodic lattice. By considering a non-Hermitian generalized Aubry-André-Harper (AAH) model w…