42 citations · 171 across the 14 of their papers we have counts for
14 papers
Dissipation induced Majarona - and -modes in a driven Rashba nanowire
Koustabh Gogoi, Tanay Nag, Arnob Kumar Ghosh
Periodic drive is an intriguing way of creating topological phases in a non-topological setup. However, most systems are often studied as a closed system, despite being always in c…
Quantum state transfer and maximal entanglement between distant qubits using a minimal quasicrystal pump
Arnob Kumar Ghosh, Rubén Seoane Souto, Vahid Azimi-Mousolou +2
Coherent quantum state transfer over macroscopic distances between non-neighboring elements in quantum circuits is a crucial component to increase connectivity and simplify quantum…
Multi higher-order Dirac and nodal line semimetals
Amartya Pal, Arnob Kumar Ghosh
In recent years, there has been a surge of interest in exploring higher-order topology and their semi-metallic counterparts, particularly in the context of Dirac, Weyl, and nodal l…
Local and energy-resolved topological invariants for Floquet systems
Arnob Kumar Ghosh, Rodrigo Arouca, Annica M. Black-Schaffer
Periodically driven systems offer a perfect breeding ground for out-of-equilibrium engineering of topological boundary states at zero energy (-mode), as well as finite energy ($…
Corner modes in non-Hermitian next-nearest-neighbor hopping model
Arnob Kumar Ghosh, Arijit Saha, Tanay Nag
We consider a non-Hermitian (NH) analog of a second-order topological insulator, protected by chiral symmetry, in the presence of next-nearest neighbor hopping elements to theoreti…
Majorana zero-modes in a dissipative Rashba nanowire
Arnob Kumar Ghosh, Annica M. Black-Schaffer
Condensed matter systems are continuously subjected to dissipation, which often has adverse effects on quantum phenomena. We focus on the impact of dissipation on a superconducting…
Generation of higher-order topological insulators using periodic driving
Arnob Kumar Ghosh, Tanay Nag, Arijit Saha
Topological insulators~(TIs) are a new class of materials that resemble ordinary band insulators in terms of a bulk band gap but exhibit protected metallic states on their boundari…
Floquet second-order topological Anderson insulator hosting corner localized modes
Arnob Kumar Ghosh, Tanay Nag, Arijit Saha
The presence of random disorder in a metallic system accounts for the localization of extended states in general. On the contrary, the presence of disorder can induce topological p…
Second-order topological superconductor via noncollinear magnetic texture
Pritam Chatterjee, Arnob Kumar Ghosh, Ashis K. Nandy +1
We put forth a theoretical framework for engineering a two-dimensional (2D) second-order topological superconductor (SOTSC) by utilizing a heterostructure: incorporating noncolline…
Engineering anomalous Floquet Majorana modes and their time evolution in helical Shiba chain
Debashish Mondal, Arnob Kumar Ghosh, Tanay Nag +1
We theoretically explore the Floquet generation of Majorana end modes~(MEMs) (both regular - and anomalous -modes) implementing a periodic sinusoidal modulation in chemical p…
Topological Superconductivity by Engineering Noncollinear Magnetism in Magnet/ Superconductor Heterostructures: A Realistic Prescription for 2D Kitaev Model
Pritam Chatterjee, Sayan Banik, Sandip Bera +4
We report on a realistic and rather general scheme where noncollinear magnetic textures proximitized with the most common -wave superconductor can appear as the alternative to $…
Time evolution of Majorana corner modes in Floquet second-order topological superconductor
Arnob Kumar Ghosh, Tanay Nag, Arijit Saha
We propose a practically feasible time-periodic sinusoidal drive protocol in onsite mass term to generate the two-dimensional~(2D) Floquet second-order topological superconductor,…
Topological characterization and stability of Floquet Majorana modes in Rashba nanowire
Debashish Mondal, Arnob Kumar Ghosh, Tanay Nag +1
We theoretically investigate a practically realizable Floquet topological superconductor model, based on a one-dimensional Rashba nanowire and proximity induced -wave supercondu…
Non-Hermitian higher-order topological superconductors in two-dimension: statics and dynamics
Arnob Kumar Ghosh, Tanay Nag
Being motivated by intriguing phenomena such as the breakdown of conventional bulk boundary correspondence and emergence of skin modes in the context of non-Hermitian (NH) topologi…