Výsledky vyhledávání - "FitzSimons, J. F."

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Cross-verification of independent quantum devices

Autor: Greganti, C., Demarie, T. F., Ringbauer, M., Jones, J. A., Saggio, V., Calafell, I. A., Rozema, L. A., Erhard, A., Meth, M., Postler, L., Stricker, R., Schindler, P., Blatt, R., Monz, T., Walther, P., Fitzsimons, J. F.

Publikováno v: Phys. Rev. X 11, 031049 (2021)

Quantum computers are on the brink of surpassing the capabilities of even the most powerful classical computers. This naturally raises the question of how one can trust the results of a quantum computer when they cannot be compared to classical simul

Externí odkaz: http://arxiv.org/abs/1905.09790

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Improved stochastic trace estimation using mutually unbiased bases

Autor: Fitzsimons, J. K., Osborne, M. A., Roberts, S. J., Fitzsimons, J. F.

We examine the problem of estimating the trace of a matrix $A$ when given access to an oracle which computes $x^\dagger A x$ for an input vector $x$. We make use of the basis vectors from a set of mutually unbiased bases, widely studied in the field

Externí odkaz: http://arxiv.org/abs/1608.00117

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