Deterministic fast scrambling with neutral atom arrays

Tomohiro Hashizume, Gregory S. Bentsen, Sebastian Weber, Andrew J. Daley

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Article number200603
JournalPhysical Review Letters
Volume126
Issue number20
DOIs
Publication statusPublished - 19 May 2021

Keywords

  • entanglement production
  • quantum entanglement
  • optical tweezers

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