Instantons and the quantum bound to chaos

The rate at which information scrambles in a quantum system can be quantified using out-of-time-ordered correlators. A remarkable prediction is that the associated Lyapunov exponent [Formula: see text] that quantifies the scrambling rate in chaotic systems obeys a universal bound [Formula: see text]...

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Veröffentlicht in:	Proceedings of the National Academy of Sciences - PNAS 2023-12, Vol.120 (49), p.e2312378120-e2312378120
Hauptverfasser:	Sadhasivam, Vijay Ganesh, Meuser, Lars, Reichman, David R, Althorpe, Stuart C
Format:	Artikel
Sprache:	eng
Schlagworte:	Fluctuations Instantons Liapunov exponents Physical Sciences Quantum theory Quantum tunnelling Zero point energy
Online-Zugang:	Volltext
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