Updates to Hybrid Quantum-Classical Annealing

Last year. we proposed an efficient gap-independent cooling scheme for a quantum annealer that benefits from finite temperatures. We chose a system based on superconducting flux qubits as a prominent example of current quantum annealing platforms and proposed coupling the qubit systemtransversely to a coplanar waveguide to counter noise and heating that arise from always-present longitudinal thermal noise. We provide a schematic circuit layout for the system and showed we achieve global performance enhancements. However, the work covered only single-qubit annealing. In this work, we discuss different strategies to generalize HQCA to larger qubit numbers.