Results 1 to 10 of about 2,159,458 (286)

Iterative quantum amplitude estimation [PDF]

open access: yesnpj Quantum Information, 2021
We introduce a variant of Quantum Amplitude Estimation (QAE), called Iterative QAE (IQAE), which does not rely on Quantum Phase Estimation (QPE) but is only based on Grover’s Algorithm, which reduces the required number of qubits and gates.
Dmitry Grinko   +3 more
doaj   +9 more sources

Bayesian Quantum Amplitude Estimation [PDF]

open access: yesQuantum
We present BAE, a problem-tailored and noise-aware Bayesian algorithm for quantum amplitude estimation. In a fault tolerant scenario, BAE is capable of saturating the Heisenberg limit; if device noise is present, BAE can dynamically characterize it and ...
Alexandra Ramôa, Luis Paulo Santos
doaj   +5 more sources

Noise-Aware Quantum Amplitude Estimation

open access: yesIEEE Transactions on Quantum Engineering
In this article, based on some simple and reasonable assumptions, we derive a Gaussian noise model for quantum amplitude estimation. We provide results from quantum amplitude estimation run on various IBM superconducting quantum computers and on ...
Steven Herbert   +3 more
doaj   +4 more sources

Gradient Estimator-Based Amplitude Estimation for Dynamic Mode Atomic Force Microscopy: Small-Signal Modeling and Tuning [PDF]

open access: yesSensors, 2020
Atomic force microscopy (AFM) plays an important role in nanoscale imaging application. AFM works by oscillating a microcantilever on the surface of the sample being scanned.
Hafiz Ahmed, Mohamed Benbouzid
doaj   +2 more sources

Variational quantum amplitude estimation [PDF]

open access: yesQuantum, 2022
We propose to perform amplitude estimation with the help of constant-depth quantum circuits that variationally approximate states during amplitude amplification.
Kirill Plekhanov   +3 more
doaj   +3 more sources

Amplitude estimation without phase estimation [PDF]

open access: yesQuantum Information Processing, 2020
AbstractThis paper focuses on the quantum amplitude estimation algorithm, which is a core subroutine in quantum computation for various applications. The conventional approach for amplitude estimation is to use the phase estimation algorithm, which consists of many controlled amplification operations followed by a quantum Fourier transform.
Naoki Yamamoto   +2 more
exaly   +4 more sources

Noise tailoring for robust amplitude estimation

open access: yesNew Journal of Physics, 2023
A universal fault-tolerant quantum computer holds the promise to speed up computational problems that are otherwise intractable on classical computers; however, for the next decade or so, our access is restricted to noisy intermediate-scale quantum (NISQ)
Archismita Dalal, Amara Katabarwa
doaj   +4 more sources

Amplitude amplification and estimation

open access: yes
Quantum algorithms : a survey of applications and end-to-end complexities / Alexander M. Dalzell, Sam Mcardle, Mario Berta, PrzemysŁaw Bienias, Chi-fang Chen, András Gilyén, Connor T. Hann, Michael J. Kastoryano, Emil T. Khabiboulline, Aleksander Kubica, Grant Salton, Samson Wang, Fernando G. S. L.
Chi-Fang Chen   +2 more
exaly   +4 more sources

Carbon market risk estimation using quantum conditional generative adversarial network and amplitude estimation

open access: yesEnergy Conversion and Economics
Accurately and efficiently estimating the carbon market risk is paramount for ensuring financial stability, promoting environmental sustainability, and facilitating informed decision‐making.
Xiyuan Zhou   +5 more
doaj   +2 more sources

Multitaper estimates of phase-amplitude coupling [PDF]

open access: yesJournal of Neural Engineering, 2021
Abstract Phase-amplitude coupling (PAC) is the association of the amplitude of a high-frequency oscillation with the phase of a low-frequency oscillation. In neuroscience, this relationship provides a mechanism by which neural activity might be coordinated between distant regions.
Kyle Q Lepage   +3 more
openaire   +2 more sources

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