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arXiv · 2105.12207

Adaptive Pauli Shadows for Energy Estimation

Charles Hadfield
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Abstract

Locally-biased classical shadows allow rapid estimation of energies of quantum Hamiltonians. Recently, derandomised classical shadows have emerged claiming to be even more accurate. This accuracy comes at a cost of introducing classical computing resources into the energy estimation procedure. This present note shows, by adding a fraction of this classical computing resource to the locally-biased classical shadows setting, that the modified algorithm, termed Adaptive Pauli Shadows is state-of-the-art for energy estimation.

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Charles Hadfield. 2021-05-25. Adaptive Pauli Shadows for Energy Estimation. https://arxiv.org/abs/2105.12207

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