title: NMR implementation of a molecular hydrogen quantum simulation with adiabatic state preparation.
abstract: It is difficult to simulate quantum systems on classical computers, while quantum computers have been proved to be able to efficiently perform such kinds of simulations. We report an NMR implementation simulating the hydrogen molecule (H2) in a minimal basis to obtain its ground-state energy. Using an iterative NMR interferometer to measure the phase shift, we achieve a 45-bit estimation of the energy value. The efficiency of the adiabatic state preparation is also experimentally tested with various configurations of the same molecule.
authors.affiliation: Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China. djf@ustc.edu.cn
authors.forename: Jiangfeng
authors.initials: J
authors.lastname: Du
authors.forename: Nanyang
authors.initials: N
authors.lastname: Xu
authors.forename: Xinhua
authors.initials: X
authors.lastname: Peng
authors.forename: Pengfei
authors.initials: P
authors.lastname: Wang
authors.forename: Sanfeng
authors.initials: S
authors.lastname: Wu
authors.forename: Dawei
authors.initials: D
authors.lastname: Lu