A Quantum Computational Approach to Multiconfigurational Valence Bond Theory

Example repository for ArXiv:2302.10660

h4.py: fast example of ring and linear H4 from paper
h4-slow.py: slow example (does not need extra structures)
utils.py: providing extra structures for fast example

In a nutshell

small quantum circuits are generated via graph-based construction (see ArXiv:2207.12421)
the total wavefunction is prepared a linear combination of the graph circuits
parameters are optimized via a global optimization procedure