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20242026
most citedEnhanced observable estimation through classical optimization of informationally over-complete measurement data -- beyond classical shadows

17 citations · 36 across the 6 of their papers we have counts for

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6 papers

quant-ph2026

Exploiting overcompleteness of Platonic-solid POVMs for shadow estimation

Dario Melegari, Stefano Mangini, Keijo Korhonen +2

Accurately estimating expectation values of observables from a finite number of measurement shots is a central challenge in quantum information science. Informationally overcomplet…

quant-ph2025

Improving shadow estimation with locally-optimal dual frames

Keijo Korhonen, Stefano Mangini, Joonas Malmi +2

Accurate estimation of observables in quantum systems is a central challenge in quantum information science, yet practical implementations are fundamentally constrained by the limi…

quant-ph2024★ 4 cited

Practical techniques for high-precision measurements on near-term quantum hardware and applications in molecular energy estimation

Keijo Korhonen, Hetta Vappula, Adam Glos +6

Achieving high-precision measurements on near-term quantum devices is critical for advancing quantum computing applications. Quantum computers suffer from high readout errors, maki…

quant-ph2024★ 2 cited

Low variance estimations of many observables with tensor networks and informationally-complete measurements

Stefano Mangini, Daniel Cavalcanti

Accurately estimating the properties of quantum systems is a central challenge in quantum computing and quantum information. We propose a method to obtain unbiased estimators of mu…

quant-ph2024★ 13 cited

Tensor network noise characterization for near-term quantum computers

Stefano Mangini, Marco Cattaneo, Daniel Cavalcanti +3

Characterization of noise in current near-term quantum devices is of paramount importance to fully use their computational power. However, direct quantum process tomography becomes…

quant-ph2024★ 17 cited

Enhanced observable estimation through classical optimization of informationally over-complete measurement data -- beyond classical shadows

Joonas Malmi, Keijo Korhonen, Daniel Cavalcanti +1

In recent years, informationally complete measurements have attracted considerable attention, especially in the context of classical shadows. In the particular case of informationa…