Preprint
Aug 2026
Theory of Measurement-Altered Criticality
Local measurements can alter long-range correlations in gapless quantum matter. We propose a theory of weakly-monitored Tomonaga-Luttinger liquids, a broad class of quantum critical states in one dimension. In order to address the intrinsic randomness of the measurement record, we develop a replica instanton calculatio...
Kabir Khanna, S. Murciano, Romain Vasseur
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