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- W4366165989 abstract "The characterization of many-body correlations provides a powerful tool for analyzing correlated quantum materials. However, experimental extraction of quantum entanglement in correlated electronic systems remains an open problem in practice. In particular, the correlation entropy quantifies the strength of quantum correlations in interacting electronic systems, yet it requires measuring all the single-particle correlators of a macroscopic sample. To circumvent this bottleneck, we introduce a strategy to obtain the correlation entropy of electronic systems solely from a set of local measurements. We show that, by combining local particle-particle and density-density correlations with a neural-network algorithm, the correlation entropy can be predicted accurately. Specifically, we show that for a generalized interacting fermionic model, our algorithm yields an accurate prediction of the correlation entropy from a set of noisy local correlators. Our work shows that the correlation entropy in interacting electron systems can be reconstructed from local measurements, providing a starting point to experimentally extract many-body correlations with local probes." @default.
- W4366165989 created "2023-04-19" @default.
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- W4366165989 date "2023-04-17" @default.
- W4366165989 modified "2023-10-14" @default.
- W4366165989 title "Extracting electronic many-body correlations from local measurements with artificial neural networks" @default.
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- W4366165989 doi "https://doi.org/10.21468/scipostphyscore.6.2.030" @default.
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