From the 1 of 5 linked papers with an AI index.
5 papers
Topological zero-reflection points in multi-terminal quantum wire junctions
Abhiram Soori, Udit Khanna, Diptiman Sen
The paper analyzes scattering in non‑interacting multi‑terminal quantum wire junctions and shows that dihedral‑symmetric junctions can exhibit exact zero‑reflection points, which a…
Metric response of relative entropy: A universal indicator of quantum criticality
Pritam Sarkar, Diptiman Sen, Arnab Sen
The information-geometric origin of fidelity susceptibility and its utility as a universal probe of quantum criticality in many-body settings have been widely discussed. Here we ex…
Refraction Hall Effect
Ronika Sarkar, Arka Bandyopadhyay, Awadhesh Narayan +1
We introduce a new mechanism that produces a Hall-like response in time-reversal-invariant materials, driven entirely by geometric effects. Specifically, we demonstrate that a tilt…
Floquet multiple exceptional points with higher-order skin effect
Gaurab Kumar Dash, Subhendu Kumar Patra, Diptiman Sen +1
We investigate the rich non-equilibrium physics arising in periodically driven open quantum systems, specifically those realized within microcavity resonators, whose dynamics are g…
Topological phase transition through tunable nearest-neighbor interactions in a one-dimensional lattice
Rajashri Parida, Diptiman Sen, Tapan Mishra
We investigate the phase diagram of a one-dimensional model of hardcore bosons or spinless fermions with tunable nearest-neighbor interactions. By introducing alternating repulsive…