3 papers
quant-ph2025
Risk-minimizing states for the quantum-phase-estimation algorithm
Joseph G. Smith, Crispin H. W. Barnes, David R. M. Arvidsson-Shukur
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…
quant-ph2023
An adaptive Bayesian quantum algorithm for phase estimation
Joseph G. Smith, Crispin H. W. Barnes, David R. M. Arvidsson-Shukur
Quantum-phase-estimation algorithms are critical subroutines in many applications for quantum computers and in quantum-metrology protocols. These algorithms estimate the unknown st…
quant-ph2022
An iterative quantum-phase-estimation protocol for near-term quantum hardware
Joseph G. Smith, Crispin H. W. Barnes, David R. M. Arvidsson-Shukur
Given applications of a unitary operation with an unknown phase , a large-scale fault-tolerant quantum system can {reduce} an estimate's {error} scaling from…