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Trapped Ion Quantum Computing Quantum Foundations

Direct Estimation of Single- and Two-Qubit Hamiltonians and Relaxation Rates

arXiv

Authors: M. Mohseni, A. T. Rezakhani, A. Aspuru-Guzik

Year

2007

Paper ID

49478

Status

Preprint

Abstract Read

~2 min

Abstract Words

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N/A

Abstract

We provide a novel approach for characterization of quantum Hamiltonian systems via utilizing a single measurement device. Specifically, we demonstrate how external quantum correlations can be used for Hamiltonian identification tasks. We explicitly introduce experimental procedures for direct estimation of single- and two-qubit Hamiltonian parameters, and also for simultaneous estimation of transverse and longitudinal relaxation rates, using a single Bell-state analyzer. An advantage of our method over the earlier approaches is that it has a built-in feature which makes it suitable for partial characterization of Hamiltonian parameters.

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We provide a novel approach for characterization of quantum Hamiltonian systems via utilizing a single measurement device.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0708.0436 [2] arXiv https://arxiv.org/abs/0708.0436 [3] Publisher https://arxiv.org/abs/0708.0436

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