Takao Kobayashi

Jun 5, 2024 | nature.com | Shu Kanno |Hajime Nakamura |Takao Kobayashi |Miho Hatanaka |Naoki Yamamoto

AbstractQuantum computers have a potential for solving quantum chemistry problems with higher accuracy than classical computers. Quantum computing quantum Monte Carlo (QC-QMC) is a QMC with a trial state prepared in quantum circuit, which is employed to obtain the ground state with higher accuracy than QMC alone. We propose an algorithm combining QC-QMC with a hybrid tensor network to extend the applicability of QC-QMC beyond a single quantum device size.