TOKYO, Mar 17, 2022 - (JCN Newswire via SEAPRWire.com) - NEC Corporation (TSE: 6701) has developed the world's first LHZ scheme(1) unit cell facilitating scaling up to a fully-connected architecture using superconducting parametron(2) quantum bits (qubits). NEC has succeeded in demonstrating quantum annealing operations using these qubits, which will enable high accuracy calculations. Via this achievement, NEC has made further progress toward the production of a quantum annealing machine(3), which is a type of quantum computer.Figure 1: LHZ scheme unit cell (left) and diagram of scaled up architecture (right)Figure 2: Diagram of the three-dimensional structure technologyCombinational optimization is important for finding solutions to complex social issues. It aims to find the optimal solution from an enormous set of potential choices. In 1999, NEC developed a superconducting qubit for use in gate-type quantum computers. Since then, NEC has applied the technology in the research and development of a quantum annealing machine using superconducting parametron qubits that can solve combinatorial optimization problems at high speed and with great accuracy.NEC has developed a four qubit ...