Bayesian phase difference estimation: a general quantum algorithm for the direct calculation of energy gaps

Author:

Sugisaki Kenji123ORCID,Sakai Chikako1,Toyota Kazuo1,Sato Kazunobu1ORCID,Shiomi Daisuke1ORCID,Takui Takeji14ORCID

Affiliation:

1. Department of Chemistry and Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan

2. JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan

3. Centre for Quantum Engineering, Research and Education (CQuERE), TCG Centres for Research and Education in Science and Technology (TCG CREST), 16th Floor, Omega, BIPL Building, Blocks EP & GP, Sector V, Salt Lake, Kolkata 700091, India

4. Research Support Department/University Research Administrator Centre, University Administration Division, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan

Abstract

Bayesian phase difference estimation (BPDE) is a controlled-time evolution-free quantum algorithm that is capable of computing the energy difference between two electronic states directly, without inspecting the total energies of individual states.

Funder

Precursory Research for Embryonic Science and Technology

Japan Society for the Promotion of Science

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

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