Fast High-Fidelity Quantum Nondemolition Qubit Readout via a Nonperturbative Cross-Kerr Coupling
R. Dassonneville, T. Ramos, V. Milchakov, L. Planat, É. Dumur, F. Foroughi, J. Puertas, S. Leger, K. Bharadwaj, J. Delaforce, C. Naud, W. Hasch-Guichard, J. J. García-Ripoll, N. Roch, O. Buisson · Physical Review X · 2020
A new qubit readout scheme preserves quantum state probabilities while maximizing fidelity with a fast readout time, thus providing a robust measurement method for a new generation of superconducting quantum processors.