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quant-ph2026
How to distinguish chaos from integrability using OTOC
Alexey Milekhin, Anders Wallberg
The decay of out-of-time-ordered correlators (OTOCs) to a small residual value signals the scrambling of quantum information. This behavior is generic: it occurs in both chaotic an…
quant-ph2026
Pauli instability in arbitrary states: detecting magic in physical correlators
Tanner Jackson, Alexey Milekhin
Measures of non-stabilizerness (``magic'') of a quantum evolution quantify how hard it is to simulate on a classical computer. A natural question is how to extract information abou…