Fujitsu and Osaka University Achieve Quantum Advantage with New Technologies

Fujitsu Limited and the Center for Quantum Information and Quantum Biology at Osaka University have made a groundbreaking advancement in quantum computing, demonstrating that it is theoretically possible for a quantum computer to perform a calculation that would take a classical computer five years in just ten hours. This achievement is significant as it showcases the potential of quantum computing to solve complex problems faster than current classical computers, even with fewer qubits. The development of these new technologies has overcome previous obstacles to practical applications, such as insufficient accuracy in phase rotation and the lack of a established physical gating procedure.

Key Takeaways:

• Fujitsu and Osaka University have jointly developed two new technologies for space-time efficient analog rotation quantum computing architecture.
• The new technologies improve phase angle accuracy during phase rotation and automatically generate efficient qubit operation procedures.
• A quantum computer using these technologies can perform a calculation that would take a classical computer five years in just ten hours.
• The calculation, a material energy estimate, can be performed using only 60,000 qubits, significantly less than the amount typically thought to be required for fault-tolerant quantum computation (FTQC) to surpass the calculation speed of classical computers.
• These results demonstrate the possibility of achieving quantum advantage, i.e., quantum computers being able to solve problems faster than current classical computers, in the early-FTQC era, expected to arrive around 2030.
• Quantum computing is expected to accelerate technological innovations in various fields, including high temperature superconductors, material development, and drug discovery.
• The generation of efficient qubit operation procedures was achieved through the development of a quantum circuit generator.
• The system minimizes computing time by dynamically changing the operational procedures of the qubits.

Statistics:

• 60,000 qubits: The number of qubits required to perform a material energy estimate calculation in just ten hours, significantly less than the traditional estimate.
• 10 hours: The time taken by a quantum computer to perform a calculation that would take a classical computer five years.
• 5 years: The time taken by a classical computer to perform the calculation.
• 2030: The estimated arrival time of the early-FTQC era, where quantum computing is expected to surpass the calculation speed of classical computers.

Sources:

• Fujitsu Limited
• Center for Quantum Information and Quantum Biology at Osaka University (QIQB)