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arXiv · 1904.02260

Contextuality Test of the Nonclassicality of Variational Quantum Eigensolvers

William M. Kirby·Peter J. Love
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Abstract

Contextuality is an indicator of non-classicality, and a resource for various quantum procedures. In this paper, we use contextuality to evaluate the variational quantum eigensolver (VQE), one of the most promising tools for near-term quantum simulation. We present an efficiently computable test to determine whether or not the objective function for a VQE procedure is contextual. We apply this test to evaluate the contextuality of experimental implementations of VQE, and determine that several, but not all, fail this test of quantumness.

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BibTeXRIS

William M. Kirby, Peter J. Love. 2020-02-07. Contextuality Test of the Nonclassicality of Variational Quantum Eigensolvers. https://doi.org/10.1103/physrevlett.123.200501

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