Detecting Topological Superconductivity via Quantum Geometric Effects

Unambiguous identification of topological superconductivity (TSC) remains one of the central challenges in condensed matter physics. Although most experimental efforts focus on detecting Majorana boundary modes, bulk signatures of TSCs are far less explored. In this talk, I will outline a strategy based on quantum geometric quantities—such as generalized Berry curvatures and the quantum metric—to predict and identify non-Majorana signatures of topological superconductivity. I will discuss qualitative TSC fingerprints manifesting in thermoelectric responses, angle-resolved photoemission spectroscopy (ARPES), local tunneling spectroscopy, and optical conductivity, providing a set of experimentally accessible criteria for identifying two-dimensional TSC phases. The framework applies broadly to emerging 2D platforms, including few-layer and heterostructured transition metal dichalcogenides and rhombohedral graphene.