aiqbench analysis
Researchers have demonstrated a novel analogue protocol for generating Bell states using superconducting circuits that matches the speed and fidelity of standard digital methods. By directly controlling system properties via adiabatic interpolation, this technique reduces infidelity to approximately 10⁻⁴ within 100 nanoseconds, offering a distinct pathway for scaling quantum information processing.
Researchers Prepare Bell States with Extremely Low Error Rates Approaching One in Ten Thousand

An infidelity rate as low as one in ten thousand represents a marked improvement in generating entangled quantum states using superconducting circuits. Previously, digitally preparing such Bell pairs typically resulted in error rates around one in a thousand, demanding approximately 80 to 130 nanoseconds for completion. This new analogue protocol achieves comparable fidelity within similar timescales, offering an alternative route beyond standard digital methods.
An error rate as low as one in ten thousand represents key progress in quantum information science. A new method devises ways to create entangled states, known as Bell states, using superconducting circuits alongside colleagues from Universitat de Barcelona. For the first time, this analogue technique matches the speed and fidelity of standard digital methods; it now reaches infidelities on…
Excerpt shown under the publisher's RSS terms · 60 words · full text and figures are on the publisher's site
Related coverage

Microsoft And Quantinuum Report on Major Gains in Quantum Error Correction
The Quantum Insider · Jun 13, 2026

Chris Ballance, The British Quantum Entrepreneur Who Put Ion Traps On A Chip
Quantum Zeitgeist · Aug 5, 2026

A brief history of quantum vs classical computational advantage
Quantum Journal · Sep 1, 2026

News
Quantum Computing Report · Jul 25, 2026