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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
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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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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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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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Quantum Amplitude Amplification and Estimation [PDF]
, 2000 Consider a Boolean function $\chi: X \to \{0,1\}$ that partitions set $X$ between its good and bad elements, where $x$ is good if $\chi(x)=1$ and bad otherwise. Consider also a quantum algorithm $\mathcal A$ such that $A |0\rangle= \sum_{x\in X} \alpha_x
Brassard, Gilles +3 more
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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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Modified Grover operator for quantum amplitude estimation
New Journal of Physics, 2021 In this paper, we propose a quantum amplitude estimation method that uses a modified Grover operator and quadratically improves the estimation accuracy in the ideal case, as in the conventional one using the standard Grover operator.
Shumpei Uno +6 more
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Iterative Amplitude Equalization for Frequency Estimation (IAE-DFT) [PDF]
SensorsThe accurate frequency estimation of sinusoidal signals remains a key requirement in precision instrumentation and signal analysis, particularly in applications where noise and spectral leakage affect the measurement accuracy. This paper introduces a new
Elena Serea +2 more
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Multitaper estimates of phase-amplitude coupling [PDF]
Journal of Neural Engineering, 2021 AbstractPhase-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