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GB further acknowledges support through the SFB Q- M&S project of the FWF, DOI 10.55776/F86

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Diagnosing phase transitions through time-scale entanglement

cond-mat.str-el · 2025-07-15 · unverdicted · novelty 7.0

Time-scale entanglement, quantified by bond dimensions in quantics tensor trains of n-particle correlators, is enhanced near phase transitions and scale-invariant at quantum critical points across multiple models.

Quantum magic of strongly correlated fermions $-$ the Hubbard dimer

quant-ph · 2026-05-18 · unverdicted · novelty 5.0 · 2 refs

Non-stabilizerness in the Hubbard dimer is quantified via robustness of magic and stabilizer Renyi entropy, revealing the latter's failure on mixed states and distinguishing it from non-Gaussianity and superselected entanglement.

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  • Diagnosing phase transitions through time-scale entanglement cond-mat.str-el · 2025-07-15 · unverdicted · none · ref 2

    Time-scale entanglement, quantified by bond dimensions in quantics tensor trains of n-particle correlators, is enhanced near phase transitions and scale-invariant at quantum critical points across multiple models.