85 citations · 1.5k across the 80 of their papers we have counts for
12 papers · 1 filter
Finite temperature dynamical quantum phase transition in a non-Hermitian system
Debashish Mondal, Tanay Nag
We investigate the interplay between the non-Hermiticity and finite temperature in the context of mixed state dynamical quantum phase transition (MSDQPT). We consider a -wave su…
Third-order Hall effect in the surface states of a topological insulator
Tanay Nag, Sanjib Kumar Das, Chuanchang Zeng +1
Time reversal and inversion symmetric materials fail to yield linear and nonlinear responses since they possess net zero Berry curvature. However, higher-order Hall response can be…
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…
Anomaly in dynamical quantum phase transition in non-Hermitian system with extended gapless phases
Debashish Mondal, Tanay Nag
The dynamical quantum phase transitions (DQPTs) and the associated winding numbers have been extensively studied in the context Hermitian system. We consider the non-Hermitian anal…
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…
Multiple higher-order topological phases with even and odd pairs of zero-energy corner modes in a symmetry broken model
Sudarshan Saha, Tanay Nag, Saptarshi Mandal
The higher-order corner modes for quantum anomalous Hall insulators in symmetry broken honeycomb lattice have been engineered recently. Here we consider an extended Haldane m…
Effect of chirality imbalance on Hall transport of PrRhC
Banasree Sadhukhan, Tanay Nag
Much has been learned about the topological transport in real materials. We investigate the interplay between magnetism and topology in the magneto-transport of PrRhC. The four…
Correlated disorder induced anomalous transport in magnetically doped topological insulators
Takuya Okugawa, Tanay Nag, Dante M. Kennes
We examine the transport properties of magnetically doped topological insulator (TI) thin films subject to correlated non-magnetic disorder. For the disorder we choose a quasi-peri…
Understanding the three-dimensional quantum Hall effect in generic multi-Weyl semimetals
Feng Xiong, Carsten Honerkamp, Dante M. Kennes +1
The quantum Hall effect in three-dimensional Weyl semimetal (WSM) receives significant attention for the emergence of the Fermi loop where the underlying two-dimensional Hall condu…
Distinct signatures of particle-hole symmetry breaking in transport coefficients for generic multi-Weyl semimetals
Tanay Nag, Dante M. Kennes
We propose and study generic multi-Weyl semimetal (mWSM) lattice Hamiltonians that break particle-hole symmetry. These models fall into two categories: model I (model II) where the…
Dynamical construction of Quadrupolar and Octupolar topological superconductors
Arnob Kumar Ghosh, Tanay Nag, Arijit Saha
We propose a three-step periodic drive protocol to engineer two-dimensional~(2D) Floquet quadrupole superconductors and three-dimensional~(3D) Floquet octupole superconductors host…