Patent · US Active

System-based extension of qEOM algorithm for quantum computation of excited-state properties

US11392849B2 · kind B2 · utility

0Cited by

4References

23Claims

0Family size

Assignees

International Business Machines Corporation · US
JSR CORPORATION · JP

Inventors

Mario Motta · San Jose, US
Pauline Ollitrault · Zürich, CH
Stephen Wood · Yorktown Heights, US
Panagiotis Barkoutsos · Zürich, CH
Joseph A. Latone · San Francisco, US
Ivano Tavernelli · Wädenswil, CH
Gavin Jones · San Jose, US
Edward Pyzer-Knapp · Runcorn, GB
Yuya Onishi · Shinagawa, JP

Key dates

Filing date	Sep 18, 2020
Grant date	Jul 19, 2022
Priority date	—
Expiry date	Jan 3, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG06N10/80
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Systems and methods that facilitate motion formalism utilizing quantum computing, to compute matrix operators in terms of commutators between qubit operators and measurements on the quantum hardware, wherein the commutators are computed utilizing symbolic calculus. Embodiments reduce computational cost of generalized eigenvalue synthesis relying on symbolic calculus and parallelization. Embodiments disclosed herein can also develop estimators of excited-states properties, considering constants of motion (e.g. spin) and non-constants of motions (e.g. dipoles, density matrices).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.