2 papers
cond-mat.stat-mech2026
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…
cond-mat.stat-mech2025
Susceptibility of entanglement entropy: a universal indicator of quantum criticality
Pritam Sarkar
A measure of how sensitive the entanglement entropy is in a quantum system, has been proposed and its information geometric origin is discussed. It has been demonstrated for two ex…