Fermionic Correlation Functions from Randomized Measurements in Programmable Atomic Quantum Devices
Piero Naldesi, Andreas Elben, Anna Minguzzi, David M. Clement, P. Zoller, Benoît Vermersch · Physical Review Letters · 2023
We provide an efficient randomized measurement protocol to estimate two- and four-point fermionic correlations in ultracold atom experiments. Our approach is based on combining random atomic beam splitter operations, which can be realized with programmable optical landscapes, with high-resolution imaging systems such as quantum gas microscopes. We illustrate our results in the context of the variational quantum eigensolver algorithm for solving quantum chemistry problems.