Investigate HOBOs

[Jooshua]

Investigate using Higher-Order Unconstrained Binary Optimization (HOBO) instead of QUBO

A starting point for reading may be: https://arxiv.org/abs/2107.03234

[Cauterium]

• Algorithms for Quadratization of HOBOs: https://arxiv.org/abs/2001.00658
• Space-efficient encoding of HOBOs for QAOA using less qubits: https://arxiv.org/abs/2009.07309