Quantum Annealing computing is an “analog” technology for finding the global minimum of an objective function as the system naturally iterates through quantum fluctuations. All quantum computing systems have the advantage of being vastly faster than conventional computers to tackle major optimisation issues. Industries adopting this technology include aerospace for use in aircraft design, quantitative finance for investment portfolio optimisation, and cancer research for drug development.
Qubit computers are a “digital” technology, built from logic gates designed from “quantum bits”, the basic unit of quantum information. Although they operate analogously to conventional computers, they can also perform iterative algorithms at superior speed. Because of conceptual similarity to traditional computing, developing programs for qubits may be conceptual simpler than for quantum annealing computers, and both techniques have been applied to similar problems in aerospace, finance, and medicine.