| Autor: |
Kirby WM; Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA., Love PJ; Department of Physics and Astronomy, Tufts University, Medford, Massachusetts 02155, USA. |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2019 Nov 15; Vol. 123 (20), pp. 200501. |
| DOI: |
10.1103/PhysRevLett.123.200501 |
| Abstrakt: |
Contextuality is an indicator of nonclassicality, and a resource for various quantum procedures. In this Letter, 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. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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