Critical phase transitions contain a variety of deep and universal physics and are intimately tied to thermodynamic quantities through scaling relations. Yet, these notions are …
The investigation and characterization of topological quantum phase transition between gapless phases is one of the recent interest of research in topological states of matter. We …
We theoretically study the transport signatures of unpaired Floquet Majorana fermions in the Josephson current of weakly linked, periodically driven topological superconductors. We …
K Sim, R Chitra, P Molignini - Physical Review B, 2022 - APS
We employ quench dynamics as an effective tool to probe different universality classes of topological phase transitions. Specifically, we study a model encompassing both Dirac-like …
The notion of fidelity susceptibility, introduced within the context of quantum metric tensor, has been an important quantity to characterize the criticality near quantum phase transitions …
Topological phases of materials are characterized by topological invariants that are conventionally calculated by different means according to the dimension and symmetry …
We show that Floquet chiral topological superconductivity arises naturally in Josephson junctions made of magnetic topological insulator-superconductor sandwich structures. The …
In 2D semiconductors and insulators, the Chern number of the valence band Bloch state is an important quantity that has been linked to various material properties, such as the …
P Molignini, R Chitra, W Chen - Europhysics Letters, 2020 - iopscience.iop.org
Topological phase transitions occur in real materials as well as quantum engineered systems, all of which differ greatly in terms of dimensionality, symmetries, interactions, and …