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. 2021 May 21;126(20):200603.
doi: 10.1103/PhysRevLett.126.200603.

Deterministic Fast Scrambling with Neutral Atom Arrays

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Free article

Deterministic Fast Scrambling with Neutral Atom Arrays

Tomohiro Hashizume et al. Phys Rev Lett. .
Free article

Abstract

Fast scramblers are dynamical quantum systems that produce many-body entanglement on a timescale that grows logarithmically with the system size N. We propose and investigate a family of deterministic, fast scrambling quantum circuits realizable in near-term experiments with arrays of neutral atoms. We show that three experimental tools-nearest-neighbor Rydberg interactions, global single-qubit rotations, and shuffling operations facilitated by an auxiliary tweezer array-are sufficient to generate nonlocal interaction graphs capable of scrambling quantum information using only O(logN) parallel applications of nearest-neighbor gates. These tools enable direct experimental access to fast scrambling dynamics in a highly controlled and programmable way and can be harnessed to produce highly entangled states with varied applications.

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