Topological entanglement entropy (TEE) is a key diagnostic of topological order, allowing to detect the presence of Abelian or non-Abelian anyons. However, there are currently no protocols to measure TEE in condensed matter systems. We propose a scheme to measure the TEE, based on a nontrivial connection with the thermodynamic entropy change occurring in a quantum point contact (QPC) as it pinches off the topological liquid into two. We show how this entropy change can be extracted using Maxwell relations from charge detection of a nearby quantum dot.
Seminars
A single factor that determines the implementation of green hydrogen is its cost. Currently practiced electrolysis methods are expensive in terms of Capex and Opex. A single factor that determines the Opex is the input energy, which is around ~55 kWh/kg H,, is due to high voltage required for oxygen evolution reaction (OER). How the oxidation can be handled suitably, so that running expenses could be brought down to the lowest level.
