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A simplified version of the quantum OTOC$^{(2)}$ problem
Robbie King, Robin Kothari, Ryan Babbush, Sergio Boixo, Kostyantyn Kechedzhi, Thomas E. O'Brien, Vadim Smelyanskiy·October 22, 2025
Quantum PhysicsComplexity
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Abstract
This note presents a simplified version of the OTOC$^{(2)}$ problem that was recently experimentally implemented by Google Quantum AI and collaborators. We present a formulation of the problem for growing input size and hope this spurs further theoretical work on the problem.