The world’s largest 256-qubit quantum computer is still halfway there, and the domestic superconducting quantum computer aims for 1000 qubits. [Japanese]

Author: Unattributed | Source: MONOist | Read the full article in Japanese

Fujitsu and the RIKEN research institute have made a significant breakthrough in quantum computing by developing a new supercomputer with 256 quantum bits. This is a major step up from their previous 64-qubit system, representing a four-fold increase in computational power. The new system is being positioned as a critical milestone towards their ultimate goal of creating a 1000-qubit quantum computer by 2026.

Quantum computers are incredibly complex machines that promise to solve incredibly complicated problems much faster than traditional computers. However, they currently face significant challenges, particularly with quantum errors that can disrupt calculations. This new 256-qubit system allows researchers to better experiment with error correction techniques, which are crucial for developing reliable quantum computing technology.

The researchers are excited about the potential applications of this technology. They believe quantum computing could revolutionize fields like finance, drug discovery, and materials science by performing complex calculations at unprecedented speeds. While the technology is still far from being practical – they estimate needing around 60,000 physical quantum bits for real-world problem solving – each advancement brings them closer to that goal.

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