Practical Hamiltonian learning with unitary dynamics and Gibbs states

Abstract We study the problem of learning the parameters for the Hamiltonian of a quantum many-body system, given limited access to the system. In this work, we build upon recent approaches to Hamiltonian learning via derivative estimation. We propose a protocol that improves the scaling dependence...

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Bibliographic Details
Main Authors: Andi Gu, Lukasz Cincio, Patrick J. Coles
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-023-44008-1