Machine learningQuantum Algorithm
Quantum Phase Estimation
Quantum Phase Estimation (QPE) is a fundamental quantum subroutine that estimates the eigenvalues of a unitary operator. Developed by Alexei Kitaev in 1995, QPE combines controlled unitary evolution with the quantum Fourier transform to extract eigenvalues from quantum states with exponential precision scaling.
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Sources
- Kitaev, A. Y. (1995). Quantum measurements and the Abelian stabilizer problem. arXiv preprint quant-ph/9511026. link ↗
- Cleve, R., Ekert, A., Macchiavello, C., Mosca, M. (1998). Quantum algorithms revisited. Proceedings of the Royal Society A, 454, 339–354. DOI: 10.1098/rspa.1998.0164 ↗
- Aspuru-Guzik, A., Love, P. J., Love, P. J. (2005). Simulated quantum computation of molecular energies. Science, 309, 1704–1707. DOI: 10.1126/science.1113479 ↗