University of Maryland and Los Alamos National Laboratory Enhance Quantum Phase Estimation with Tapering Functions

Summary

Researchers from the University of Maryland and Los Alamos National Laboratory have developed a new quantum phase estimation algorithm, called the tapered quantum phase estimation algorithm, to improve the success probability of estimating phases of unitaries without relying on computationally expensive techniques. This approach utilizes tapering functions, commonly found in classical signal processing, to achieve optimal query complexity.