Reference · 2014

A variational eigenvalue solver on a photonic quantum processor

Peruzzo, A., McClean, J., Shadbolt, P., Yung, M.-H., Zhou, X.-Q., Love, P. J., Aspuru-Guzik, A., & O'Brien, J. L. (2014). A variational eigenvalue solver on a photonic quantum processor. Nature Communications, 5, 4213.

DOI Record link

Authors: Alberto Peruzzo; Jarrod McClean; Peter Shadbolt; Man-Hong Yung; Xiao-Qi Zhou; Peter J. Love; Alán Aspuru-Guzik; Jeremy L. O'Brien
Venue: Nature Communications 5, 4213

The source of VQE. Cited for the hybrid loop — ansatz, expectation value, classical optimizer — and for the photonic demonstration on HeH+. The paper's contrast is with phase estimation's coherence requirement. It is not a scaling theorem for chemistry.

Cited by

Ansatzglossary
Chemistrytopic
Quantum algorithms tabletable
Variational quantum eigensolveralgorithm
What the source papers claimdigest

Updated 7 Oct 2026.