Concurrent logic gate/ error-monitoring execution, reducing decoherence overhead for scalable, fault-tolerant quantum computing

https://phys.org/news/2026-09-dual-purpose-qubit-quantum-errors.html

"trade-off between operation speed/ quantum state stability overcome using superconducting qubit having 2 strongly coupled modes: low-frequency stores data/ separate arm mode handles circuit interactions/ readouts... quarton coupler enables strong nonlinear coupling while insulating core computational states from decay/ cross-talk... significantly faster entangling gates/ non-dispersive readouts alongside state-of-the-art coherence times... scalable, fault-tolerant quantum error correction"