Sampling reduced density matrix to extract fine levels of entanglement spectrum and restore entanglement Hamiltonian

Abstract The reduced density matrix (RDM) plays a key role in quantum entanglement and measurement, as it allows the extraction of almost all physical quantities related to the reduced degrees of freedom. However, restricted by the degrees of freedom in the environment, the total system size is ofte...

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Bibliographic Details
Main Authors: Bin-Bin Mao, Yi-Ming Ding, Zhe Wang, Shijie Hu, Zheng Yan
Format: Article
Language:English
Published: Nature Portfolio 2025-03-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-025-58058-0
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