Y Zhou, Z Zhang, Z Yin, S Huai, X Gu, X Xu… - Nature …, 2021 - nature.com
… parametric reset scheme for tunable superconductingqubits. By parametricmodulation of the qubit … The parametricmodulation we propose consists of one or two frequency components …
… We show that tunable superconductingqubits under parametricmodulation have first-order … These flux sweet spots occur at the extrema of the qubit average frequency under modulation…
… strength can be achieved by our parametricallymodulating the qubits; that is, each Qj with 1 ≤ j ≤ N − 1 is biased by an ac magnetic flux to periodically modulate its frequency as …
ES Fried, P Sivarajah, N Didier, EA Sete… - arXiv preprint arXiv …, 2019 - arxiv.org
… — two-qubit gates can be performed using AC signals to modulate a tunable transmon’s … two-qubit gates. Specifically, we measure the qubit coherence time under flux modulation while …
… of optimally biased superconducting flux qubits. By modulating the nonlinear inductance of an additional coupling element, we parametrically induced a two-qubit transition that was …
… Here, we demonstrate significantly faster gate times when the bSWAP interaction is mediated parametrically by a flux modulation of the tunable coupler using a similar device as in Ref. […
… is periodically modulated. It can … modulated by binary phase-shift keying (BPSK). Moreover, we apply this demodulation capability to the dispersive readout of a superconductingqubit. …
… for a superconductingqubit by dispersively coupling it with a Josephson parametric oscillator. We employ a tunable quarter wavelength superconducting resonator and modulate its …
… computer with superconductingqubits is the execution of high-fidelity two-qubit gates within … We propose and demonstrate parametric iSWAP and CZ gates activated by modulating the …