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Trapped Ion Quantum Computing Quantum Simulation

Universal set of Dynamically Protected Gates for Bipartite Qubit Networks II: Soft Pulse Implementation of the [[5,1,3]] Quantum Error Correcting Code

arXiv
Authors: Amrit De, Leonid P. Pryadko

Year

2015

Paper ID

27432

Status

Preprint

Abstract Read

~2 min

Abstract Words

109

Citations

N/A

Abstract

We model repetitive quantum error correction (QEC) with the single-error-correcting five-qubit code on a network of individually-controlled qubits with always-on Ising couplings, using our previously designed universal set of quantum gates based on sequences of shaped decoupling pulses. In addition to serving as accurate quantum gates, the sequences also provide dynamical decoupling (DD) of low-frequency phase noise. The simulation involves integrating unitary dynamics of six qubits over the duration of tens of thousands of control pulses, using classical stochastic phase noise as a source of decoherence. The combined DD/QEC protocol dramatically improves the coherence, with the QEC alone responsible for more than an order of magnitude infidelity reduction.

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  • We model repetitive quantum error correction (QEC) with the single-error-correcting five-qubit code on a network of individually-controlled qubits with always-on Ising...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1509.01239 [2] arXiv https://arxiv.org/abs/1509.01239 [3] Publisher https://arxiv.org/abs/1509.01239

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