•Researchers at KRISS have identified that coherent photons, interacting via a resonator, directly cause dephasing in superconducting qubits.
•The dephasing profile was found to closely mirror the resonator's spectral characteristics, highlighting a precise relationship between these quantum components.
•Dynamical decoupling demonstrated robust capabilities in mitigating this coherence decay, offering a vital tool for quantum error control strategies.
•Researchers at KRISS have identified that coherent photons, interacting via a resonator, directly cause dephasing in superconducting qubits.
•The dephasing profile was found to closely mirror the resonator's spectral characteristics, highlighting a precise relationship between these quantum components.
•Dynamical decoupling demonstrated robust capabilities in mitigating this coherence decay, offering a vital tool for quantum error control strategies.