Higher-order OTOCs carry information beyond the standard NMR spectrum:
k=1/2 order exactly reproduces the spectral function,
each successive order generates new peaks at all pairwise and higher-order combinations of the transition frequencies!

Register here: https://quantumsimulations.de/summit-26

#quantumcomputing

Why OTOCs matter: from Quantum Scrambling to NMR Spectra.

After the Google Quantum AI paper on OTOCs to demonstrate quantum advantage, the question arises: what are they actually measuring?

The key message is that OTOC of the 1/2 order is the spectral function.

#hqs #hqspectrum #nmr...