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Trapped Ion Quantum Computing

The three phases of quantum annealing: fast, slow, and very slow

arXiv
Authors: Artur Soriani, Pierre Nazé, Marcus V. S. Bonança, Bartłomiej Gardas, Sebastian Deffner

Year

2021

Paper ID

40597

Status

Preprint

Abstract Read

~2 min

Abstract Words

96

Citations

N/A

Abstract

Currently, existing quantum annealers have proven themselves as viable technology for the first practical applications in the noisy-intermediate-scale-quantum era. However, to fully exploit their capabilities, a comprehensive characterization of their finite-time excitations is instrumental. To this end, we develop a phase diagram for driven Ising chains, from which the scaling behavior of the excess work can be read off as a function of process duration and system size. "Fast" processes are well described by the Kibble-Zurek mechanism; "slow" processes are governed by effective Landau-Zener dynamics; and "very slow" processes can be approximated with adiabatic perturbation theory.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2021 reference point for readers tracking recent quantum research.
  • Currently, existing quantum annealers have proven themselves as viable technology for the first practical applications in the noisy-intermediate-scale-quantum era.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2112.08490 [2] arXiv https://arxiv.org/abs/2112.08490 [3] Publisher https://arxiv.org/abs/2112.08490

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