Variational microcanonical estimator

We propose a variational quantum algorithm for estimating microcanonical expectation values in models obeying the eigenstate thermalization hypothesis. Using a relaxed criterion for convergence of the variational optimization loop, the algorithm generates weakly entangled superpositions of eigenstat...

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Bibliographic Details
Main Authors: Klée Pollock, Peter P. Orth, Thomas Iadecola
Format: Article
Language:English
Published: American Physical Society 2023-09-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.5.033224