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Tech News
Physicists at Chalmers University of Technology in Sweden devised a theoretical method that performs a wide range of advanced quantum operations more than a thousand times faster than current techniques. The approach targets the core problem that qubits are extremely fragile and prone to errors from noise, radiation, and heat during lengthy operations. The findings were published in Physical Review Letters.
IBM and University of Chicago researchers used a new error-correction technique to encode 70 logical qubits and complete a random circuit sampling task in roughly 15 minutes, a computation that would take leading classical supercomputers an impractical amount of time. The team also designed a more structured circuit approach to verify that the quantum output was actually correct, addressing a longstanding challenge in confirming quantum results once problems exceed classical checking ability. The circuits and data have been published via the Quantum Advantage Tracker.
Quantinuum has introduced Helios, a 98-qubit trapped-ion quantum computer that uses a four-way junction to shuttle ions between memory and processing zones, alongside new control software called Helios runtime that schedules ion movement and laser operations. It surpasses the company's earlier machines, which had 32 qubits in 2023 and 56 qubits in 2025, making it the largest trapped-ion system built so far.
Quantinuum has unveiled Helios, a trapped-ion quantum computer using 98 qubits, the largest such system built to date. The machine relies on a new four-way X junction hardware design paired with Helios runtime software, allowing it to move and process data across multiple paths simultaneously rather than in a single line, as earlier machines required.