  We demonstrate the simulation of a noncollinear molecule, e.g. H2O molecule
using Variational Quantum Eigensolver (VQE) with high chemical accuracy. The 2D
and 3D potential energy surface (PES) were reported. Taking advantage of the
potential speedup in Qiskit runtime program, the optimal initial parameters for
the variational quantum circuits were obtained after several consecutive
iterations, thus resulting in accurate prediction of water's PES matching
result obtained from exact diagonalization of the full Hamiltonian.
