Motion‐robust reconstruction of multishot diffusion‐weighted images without phase estimation through locally low‐rank regularization
Sign Up to like & getrecommendations! Published in 2019 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.27488
Abstract: The goal of this work is to propose a motion robust reconstruction method for diffusion‐weighted MRI that resolves shot‐to‐shot phase mismatches without using phase estimation. read more here.
Keywords: phase; phase estimation; diffusion weighted; robust reconstruction ... See more keywords
Improving Pulse Phase Estimation Accuracy with Sampling and Weighted Averaging
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Navigation"
DOI: 10.1017/s0373463318001066
Abstract: The accuracy in an X-ray pulsar-based navigation system depends mainly on the accuracy of the pulse phase estimation. In this paper, a novel method is proposed which combines an epoch folding process and a cross-correlation… read more here.
Keywords: pulse phase; accuracy; method; phase estimation ... See more keywords
Does the full configuration interaction method based on quantum phase estimation with Trotter decomposition satisfy the size consistency condition?
Sign Up to like & getrecommendations! Published in 2024 at "AIP Advances"
DOI: 10.1063/5.0223661
Abstract: Electronic structure calculations of atoms and molecules are considered to be a promising application for quantum computers. Two key algorithms, the quantum phase estimation (QPE) and the variational quantum eigensolver (VQE), have been extensively studied.… read more here.
Keywords: size; condition; size consistency; phase estimation ... See more keywords
Risk-minimizing states for the quantum-phase-estimation algorithm
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review A"
DOI: 10.1103/8n2r-mxlc
Abstract: The quantum-phase-estimation algorithm (QPEA) is widely used to find estimates of unknown phases. The original algorithm relied on an input state in a uniform superposition of all possible bit strings. However, it is known that… read more here.
Keywords: risk minimizing; state; risk; quantum phase ... See more keywords
Squeezing as a resource to counteract phase diffusion in optical phase estimation
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.062610
Abstract: We address a phase estimation scheme using Gaussian states in the presence of non-Gaussian phase noise. At variance with previous analysis, we analyze situations in which the noise occurs before encoding phase information. In particular,… read more here.
Keywords: phase; estimation; squeezing resource; phase estimation ... See more keywords
Experimental Bayesian Quantum Phase Estimation on a Silicon Photonic Chip.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.118.100503
Abstract: Quantum phase estimation is a fundamental subroutine in many quantum algorithms, including Shor's factorization algorithm and quantum simulation. However, so far results have cast doubt on its practicability for near-term, nonfault tolerant, quantum devices. Here… read more here.
Keywords: phase; phase estimation; experimental bayesian; quantum phase ... See more keywords
Experimental Demonstration of a Cheap and Accurate Phase Estimation.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.118.190502
Abstract: We demonstrate an experimental implementation of robust phase estimation (RPE) to learn the phase of a single-qubit rotation on a trapped Yb^{+} ion qubit. We show this phase can be estimated with an uncertainty below… read more here.
Keywords: phase; phase estimation; demonstration cheap; experimental demonstration ... See more keywords
Entanglement-Enhanced Phase Estimation without Prior Phase Information.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.118.233603
Abstract: We study the generation of planar quantum squeezed (PQS) states by quantum nondemolition (QND) measurement of an ensemble of ^{87}Rb atoms with a Poisson distributed atom number. Precise calibration of the QND measurement allows us… read more here.
Keywords: phase; phase estimation; without prior; estimation without ... See more keywords
Evaluating Energy Differences on a Quantum Computer with Robust Phase Estimation.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.126.210501
Abstract: We adapt the robust phase estimation algorithm to the evaluation of energy differences between two eigenstates using a quantum computer. This approach does not require controlled unitaries between auxiliary and system registers or even a… read more here.
Keywords: quantum computer; robust phase; phase estimation;
Doppler Gyroscopes: Frequency vs Phase Estimation.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.113901
Abstract: We consider the fundamental roles of frequency versus phase in parameter estimation, specifically in the Sagnac effect. We describe a novel, ultrasensitive gyroscope based on the extremely steep frequency-dependent gain of a liquid crystal light… read more here.
Keywords: doppler gyroscopes; phase estimation; phase; estimation ... See more keywords
Full-Period Quantum Phase Estimation.
Sign Up to like & getrecommendations! Published in 2023 at "Physical review letters"
DOI: 10.1103/physrevlett.130.120802
Abstract: Quantum sensing can provide the superior sensitivity for sensing a physical quantity beyond the shot-noise limit. In practice, however, this technique has been limited to the issues of phase ambiguity and low sensitivity for small-scale… read more here.
Keywords: full period; phase estimation; quantum; phase ... See more keywords