Metropolis-style random sampling of quantum gates to estimate low-energy observables
Judah Unmuth-Yockey · arXiv (Cornell University) · 2021
We propose a quantum algorithm to compute low-energy expectation values by sampling a partition function associated with the average energy. This sampling is done through an accept/reject Metropolis-style algorithm on the quantum gates themselves. The observables calculated in this way are extrapolated from higher-energies to the ground state.