Quantum vs. classical information: operator negativity as a probe of scrambling
Quantum vs. classical information: operator negativity as a probe of scrambling
We consider the logarithmic negativity and related quantities of time evolution operators. We study free fermion, compact boson, and holographic conformal field theories (CFTs) as well as numerical simulations of random unitary circuits and integrable and chaotic spin chains. The holographic behavior strongly deviates from known non- holographic CFT results …