55 citations · 88 across the 12 of their papers we have counts for
8 papers · 1 filter
Correlated hopping induced topological order in an atomic mixture
Ashirbad Padhan, Luca Barbiero, Tapan Mishra
The large majority of topological phases in one dimensional many-body systems are known to inherit from the corresponding single-particle Hamiltonian. In this work, we go beyond th…
Interaction driven topological phase transitions of hardcore bosons on a two-leg ladder
Rajashri Parida, Ashirbad Padhan, Tapan Mishra
We investigate the topological properties of hardcore bosons possessing nearest-neighbor repulsive interactions on a two-leg ladder. We show that by allowing nearest neighbour dime…
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…
Disorder driven Thouless charge pump in a quasiperiodic chain
Ashirbad Padhan, Tapan Mishra
Thouless charge pump enables a quantized transport of charge through an adiabatic evolution of the Hamiltonian exhibiting topological phase. While this charge pumping is known to b…
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…
Interacting bosons on a Su-Schrieffer-Heeger ladder: Topological phases and Thouless pumping
Ashirbad Padhan, Suman Mondal, Smitha Vishveshwara +1
We study the topological properties of hardcore bosons on a two-leg ladder consisting of two Su-Schrieffer-Heeger (SSH) chains that are coupled via hopping and interaction. We char…
Quantum phases of constrained bosons on a two-leg Bose-Hubbard ladder
Ashirbad Padhan, Rajashri Parida, Sayan Lahiri +2
Bosons in periodic potentials with very strong local interactions, known as the constrained bosons often exhibit interesting physical behavior. We investigate the ground state prop…
Emergence of multiple localization transitions in a one-dimensional quasiperiodic lattice
Ashirbad Padhan, Mrinal Kanti Giri, Suman Mondal +1
Low dimensional quasiperiodic systems exhibit localization transitions by turning all quantum states localized after a critical quasidisorder. While certain systems with modified o…