362 citations · 1.5k across the 90 of their papers we have counts for
90 papers
Evaluating Chern Topology in Discretized Brillouin Zones Using Bargmann Invariants
Swarup Sangiri, A Taraphder
We develop a finite-state geometric framework based on third-order Bargmann invariants for evaluating Chern numbers and characterizing local quantum-state geometry. Using gauge-inv…
Weyl Chirality and Kitaev Topology through Bargmann Invariants
Swarup Sangiri, A. Taraphder
We apply a finite-state geometric formulation based on Bargmann invariants to a two-band Weyl Hamiltonian and the one-dimensional Kitaev model of a p-wave superconductor. For the W…
Geometric Phases in Two-Level Mixing: From Neutral Mesons to Holonomic Qubits and Topological Majorana Modes
Swarup Sangiri, Utpal Sarkar, A Taraphder
We investigate the geometric structure of a Hermitian two-level mixing Hamiltonian motivated by neutral meson oscillations and its connections with qubit, fermionic, and topologica…
Large circular photogalvanic effect in the noncentrosymmetric magnetic Weyl semimetal CeAlSi
Abhirup Roy Karmakar, A. Taraphder, G. P. Das
The recent discovery of the Weyl semimetal CeAlSi with simultaneous breaking of inversion and time-reversal symmetries has opened up new avenues for research into the interaction b…
Signature of nodal topology in nonlinear quantum transport across junctions in Weyl and multi-Weyl semimetals
Suvendu Ghosh, Snehasish Nandy, Jian-Xin Zhu +1
We investigate quantum transport through a rectangular potential barrier in Weyl semimetals (WSMs) and multi-Weyl semimetals (MSMs), within the framework of Landauer-Büttiker forma…
Possible routes to superconductivity in the surface layers of V-doped MgTiO through multiple charge transfers and suppression of Jahn-Teller activity
Dibyendu Dey, T. Maitra, A. Taraphder
Superconductivity in the family of spinel oxides is very rare owing to their robust Mott-insulating nature. About half a century ago, LiTiO became the first reported spinel…