公开(公告)号：US20210125095A1

公开(公告)日：2021-04-29

申请号：US17075192

申请日：2020-10-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Rei SAKUMA ,  Satoshi NAKAMURA ,  Jaehyun BAE

IPC: G06N10/00 ,  G06F17/16 ,  H03K19/00

Abstract: Disclosed is an analysis method that calculates a Green's function while reducing the number of quantum gates required for calculation by a quantum processor. A classical processor converts a Hamiltonian operator of a sub-system corresponding to a basis function representing an ‘N±1’ electromagnetic field with respect to an analysis target substance having ‘N’ (where the ‘N’ is a natural number) number of electrons and an operator corresponding to an overlapping matrix of the basis function into a spin operator, and a quantum processor calculates an expected value of the spin operator. The classical processor calculates an element of a Hamiltonian matrix corresponding to the Hamiltonian operator and an element of the overlapping matrix, based on the expected value, and calculates a one-electron Green's function, based on the Hamiltonian matrix and the overlapping matrix.