Quantum computers are expensive and powerful — but until now, most of their capacity sat idle whenever a single user's program wasn't filling the machine. Researchers in Japan say they've solved that waste problem with what they claim is a world first.
According to reporting by Tech Xplore and MSN News, the team developed a feature called "quantum multi-programming auto mode," which automatically runs quantum programs from multiple different users at the same time, in parallel. The capability has been launched on the Center for Quantum, a cloud-based platform.
The idea mirrors something the classical computing world figured out decades ago: time-sharing. Modern computers juggle dozens of tasks simultaneously, keeping processors busy. Quantum hardware has largely lacked this ability, meaning a machine costing hundreds of millions of dollars might be sitting mostly unused while waiting for one program to finish before the next one starts.
By automating the scheduling and parallel execution of programs from different users, the new mode allows the underlying quantum hardware to run at closer to its full theoretical capacity — without requiring users to do anything differently themselves.
The sources do not detail which specific quantum hardware the system runs on, how many users can share the machine simultaneously, or the performance benchmarks achieved. The researchers have not been individually named in the available reporting.
If the approach scales and proves reliable, it could meaningfully lower the cost of quantum computing access for researchers and businesses — making the technology more practical well before the hardware itself matures into something mainstream.