Passive quantum error correction dampens decoherence, doubling qubit's operational lifetime and crossing critical break-even threshold

https://phys.org/news/2026-06-passive-quantum-error-qubit-lifetime.html

"quantum computers correct data using complex operations/ real-time electronic feedback loops, overcome with Parity Recovery by Selective Photon Addition utilizing binomial bosonic code inside superconducting cavity coupled to 3-level transmon ancilla circuit, automatically detecting/ fixing single-photon losses real-time... adds photon only when senses error, eliminating external hardware tracking... 196 μ s time-averaged logical coherence lifetime surpasses 186-μ s decay limit of uncorrected photons"