New technologies establish method to run practical quantum
algorithms faster than current classical computers with fewer
qubits
TOKYO, Aug. 28,
2024 /CNW/ -- Fujitsu Limited and the Center for
Quantum Information and Quantum Biology at Osaka University (QIQB) today announced the
joint development of two new technologies for the space-time
efficient analog rotation quantum computing architecture that will
accelerate the realization of practical quantum computing.
Fujitsu and QIQB have leveraged these new technologies, one that
improves phase angle accuracy during phase rotation and one that
automatically generates efficient qubit operation procedures, to
show that it is theoretically possible for a quantum computer to
perform a calculation that would take a classical computer five
years, in only ten hours. The two organizations found that the
calculation, a material energy estimate, would be possible 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 for the first time how quantum
advantage, i.e., quantum computers being able to solve problems
faster than current classical computers, can be achieved in the
early-FTQC era, which is expected to arrive around 2030. Quantum
computing is expected to accelerate technological innovations in
various fields, including enabling a larger-scale analysis of the
Hubbard model for developing high
temperature superconductors, which may improve the efficiency of
electrical infrastructure, as well as lead to innovations in
material development and drug discovery.
The generation of efficient qubit operation procedures was
achieved through the development of a quantum circuit generator.
This system introduces a streamlined the process for converting
logic gates, which are the fundamental operations of quantum
computing, into physical gates, which operate the qubits. The
system is also equipped with acceleration technology that minimizes
computing time by dynamically changing the operational procedures
of the qubits.
The two organizations initially announced the quantum computing
architecture on March 23, 2023, but
there were obstacles to practical applications including
insufficient accuracy in phase rotation and the lack of an
established physical gating procedure, a method of operating qubits
suitable for specific calculation problems. These new technologies
address these obstacles.
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SOURCE Fujitsu Limited