qiskit.circuit.library.PhaseEstimation class PhaseEstimation(num_evaluation_qubits, unitary, iqft=None, name='QPE')GitHub Phase Estimation circuit. In the Quantum Phase Estimation (QPE) algorithm [1, 2, 3], the Phase Estimation circuit is used to estimate the phase ϕϕ of an eigenvalue ...
Quantum Phase Estimation Algorithms by Donny Cheung A thesis presented to the University of Waterloo in fulfilment of the thesis requirement for the degree of Master of Mathematics in Combinatorics and Optimization Waterloo, Ontario, Canada, 2003 c Donny Cheung 2003 I hereby declare that I am ...
Distributed quantum metrology can enhance the sensitivity for sensing spatially distributed parameters beyond the classical limits. Here we demonstrate distributed quantum phase estimation with discrete variables to achieve Heisenberg limit phase measure
该篇文章将详细展开讲述上篇Quantum Principle Component Analysis所提到的重要框架Quantum Phase Estimation,QPE。该框架被广泛应用于量子算法中,例如QPCA,HHL,QSVD等。以下是主要参考文献: John Watrous的课件 https://cs.uwaterloo.ca/~watrous/LectureNotes/CPSC519.Winter2006/08.pdfcs.uwaterloo.ca/~watrous/...
如何设计测量线路来探测这些相位,就是量子相位估计(Quantum Phase Estimation)问题。量子相位估计是量子计算中一个基本且重要的算法 primitive,也是量子计量学的核心问题之一。 接下来我们来看看 \rho(\theta) 的导数。量子力学扎实的小伙伴应该很熟悉了,结果中会有一个对易子: \frac{\partial}{\partial \theta} \...
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. We provide a rigorous analysis of IQAE and pr...
Mohammadbagherpoor, H., Oh, Y.-H., Dreher, P., Singh, A., Yu, X., Rindos, A.J.: An Improved Implementation Approach for Quantum Phase Estimation on Quantum Computers. In: 2019 IEEE International Conference on Rebooting Computing (ICRC) (2019).https://doi.org/10.1109/icrc.2019.8914702...
Resource Estimation Quantum simulators Quantum providers Key concepts of quantum computing Troubleshooting Resources Release notes API reference Download PDF Save Add to Collections Add to plan Share via Facebookx.comLinkedInEmail Print Article 01/13/2025 ...
Quantum phase estimation Quantum algorithm for estimating the eigenphases of an operator. Side effects A side effect in programming is an effect that modifies the program state outside the local environment. Monad In programming, a monad is a structure that represents computations. Rights and permiss...
ApplyXorInPlace(1, eigenstateRegister); let oracle = ApplyOrderFindingOracle(generator, modulus, _, _); // Use phase estimation with a semiclassical Fourier transform to // estimate the frequency. use c = Qubit(); for idx in bitsPrecision - 1..-1..0 { within { H(c); } apply { ...