Imaginary-time evolution using forward and backward real-time evolution with a single ancilla: First-quantized eigensolver algorithm for quantum chemistry

T Kosugi, Y Nishiya, H Nishi, Y Matsushita - Physical Review Research, 2022 - APS
Imaginary-time evolution (ITE) on a quantum computer is a promising formalism for
obtaining the ground state of a quantum system. The probabilistic ITE (PITE) exploits …

Hybrid quantum-classical algorithm for computing imaginary-time correlation functions

R Sakurai, W Mizukami, H Shinaoka - Physical Review Research, 2022 - APS
Quantitative descriptions of strongly correlated materials pose a considerable challenge in
condensed matter physics and chemistry. A promising approach to address this problem is …

Quantum algorithm for Wang-Landau sampling

GT Floyd, DP Landau, MR Geller - arxiv preprint arxiv:2208.09543, 2022 - arxiv.org
It has been shown that the Metropolis algorithm can be implemented on quantum computers
in a way that avoids the sign problem. However, flat histogram techniques are often …