Results 1 to 10 of about 103,182 (158)
Variational quantum amplitude estimation [PDF]
Quantum, 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
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Iterative quantum amplitude estimation [PDF]
npj 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 +4 more sources
Gradient Estimator-Based Amplitude Estimation for Dynamic Mode Atomic Force Microscopy: Small-Signal Modeling and Tuning [PDF]
Sensors, 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
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Amplitude estimation without phase estimation [PDF]
Quantum 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.
Yohichi Suzuki +2 more
exaly +4 more sources
Noise tailoring for robust amplitude estimation
New 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
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Bayesian Quantum Amplitude Estimation [PDF]
QuantumWe 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
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Noise-Aware Quantum Amplitude Estimation
IEEE Transactions on Quantum EngineeringIn 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
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Amplitude amplification and estimation
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.
Alexander M Dalzell +2 more
exaly +4 more sources
Multitaper estimates of phase-amplitude coupling [PDF]
Journal 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
Amplitude Estimation from Quantum Signal Processing [PDF]
Quantum, 2023 Amplitude estimation algorithms are based on Grover's algorithm: alternating reflections about the input state and the desired outcome. But what if we are given the ability to perform arbitrary rotations, instead of just reflections?
Patrick Rall, Bryce Fuller
doaj +1 more source