The authors introduce the scar full ETH to capture correlations among matrix elements involving scar states, establish its scaling and factorization via typicality, reorganize multi-time correlations with thermal and scar cumulants, and numerically check it in the PXP model.
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Scrambling dynamics in a nuclear spin system produce correlations yielding 33(2) dB signal enhancement and 18(1) dB metrological gain with 40(3) μrad phase sensitivity.
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Scar Full Eigenstate Thermalization Hypothesis
The authors introduce the scar full ETH to capture correlations among matrix elements involving scar states, establish its scaling and factorization via typicality, reorganize multi-time correlations with thermal and scar cumulants, and numerically check it in the PXP model.
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Correlation-enhanced metrology from scrambling dynamics in a solid-state spin system
Scrambling dynamics in a nuclear spin system produce correlations yielding 33(2) dB signal enhancement and 18(1) dB metrological gain with 40(3) μrad phase sensitivity.