Eigenvector continuation for emulating and extrapolating two-body resonances
Nuwan Yapa, K. Fossez, S. König
Abstract
Connecting bound states and unbound resonant states continues to be a key challenge for the description of nuclei as open quantum systems. This paper uses eigenvector continuation, a newly popular method of extrapolating tractable calculations to otherwise intractable parameter regions, to go from bound-state data to resonances in the continuum. The successful benchmarking in a two-body system promises possible applications to otherwise inaccessible systems of physical interest.
Topics & Concepts
PhysicsContinuationBound stateEigenvalues and eigenvectorsAnalytic continuationScalingQuantumStatistical physicsScatteringQuantum mechanicsFew-body systemsWave functionQuantum systemTheoretical physicsComputer scienceMathematical analysisGeometryMathematicsProgramming languageQuantum, superfluid, helium dynamicsAdvanced NMR Techniques and ApplicationsAdvanced Chemical Physics Studies