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Trapped Ion Quantum Computing

Quantum Control of Many-body Localized States

arXiv
Authors: Soonwon Choi, Norman Y. Yao, Sarang Gopalakrishnan, Mikhail D. Lukin

Year

2015

Paper ID

27586

Status

Preprint

Abstract Read

~2 min

Abstract Words

114

Citations

N/A

Abstract

We propose and analyze a new approach to the coherent control and manipulation of quantum degrees of freedom in disordered, interacting systems in the many-body localized phase. Our approach leverages a number of unique features of many-body localization: a lack of thermalization, a locally gapped spectrum, and slow dephasing. Using the technique of quantum phase estimation, we demonstrate a protocol that enables the local preparation of a many-body system into an effective eigenstate. This leads to the ability to encode information and control interactions without full microscopic knowledge of the underlying Hamiltonian. Finally, we analyze the effects of weak coupling to an external bath and provide an estimate for the fidelity of our protocol.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2015 reference point for readers tracking recent quantum research.
  • We propose and analyze a new approach to the coherent control and manipulation of quantum degrees of freedom in disordered, interacting systems in the many-body localized phase.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1508.06992 [2] arXiv https://arxiv.org/abs/1508.06992 [3] Publisher https://arxiv.org/abs/1508.06992

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