SUPERCONDUCTING QUANTUM COMPUTING SYSTEM AND QUANTUM BIT MANIPULATION METHOD

• Main Authors: PAN, Jian, ZHAO, Peng
• Format: Patent
• Language: English; French; German
• Published: 20.12.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; PHYSICS

Disclosed are a superconducting quantum computing system (600) and a quantum bit manipulation method. The system (600) includes a control system (610) and a superconducting quantum chip (620). The superconducting quantum chip (620) includes at least two connection regions (621) and a first central exchange region (622). Each connection region (621) includes a first suspended superconducting bit and at least one first superconducting bit. The first central exchange region (622) includes the first suspended superconducting bit, and is used to transfer a quantum operation between superconducting bits in different connection regions (621). A control circuit is configured to control a coupling strength between the first suspended superconducting bit and the first superconducting bit. Therefore, a single connection region (621) or a central exchange region can be isolated by controlling the coupling strength between the first suspended superconducting bit and the first superconducting bit, thereby effectively obtaining a divided subspace. A two-bit gate manipulation between different connection regions (621) may be transited by using the central exchange region. Therefore, various quantum manipulations required for general quantum computing can be implemented on a large-scale superconducting quantum chip (620).