R-CCS Cafe 第203回 第3部

As R. Feynman was originally suggested in 1982, quantum many-body systems such as quantum materials are one of the most promising classes of applications for quantum computing. In this talk, I would like to first briefly introduce some of the research activities in our team on quantum simulations for quantum computing. I will then discuss quantum algorithms of quantum simulations for near-term quantum computers such as NISQ devices, focusing on quantum-classical hybrid algorithms with parametrized quantum circuits [1,2] and beyond the variational quantum circuit ansatz [3].
[1] “Symmetry-adapted variational quantum eigensolver”, K. Seki, T. Shirakawa, and S. Yunoki, Phys. Rev. A 101, 052340 (2020).
[2] “Discretized quantum adiabatic process for free fermions and comparison with the imaginary-time evolution”, T. Shirakawa, K. Seki, and S. Yunoki, arXiv:2008.09361.
[3] “Quantum power method by a superposition of time-evolved states”, K. Seki and S. Yunoki, arXiv:2008.03661.