Parametric multi-element coupling architecture for coherent and dissipative control of superconducting qubits

GBP Huber, FA Roy, L Koch, I Tsitsilin, J Schirk… - arXiv preprint arXiv …, 2024 - arxiv.org
… present a superconducting qubit architecture based on tunable parametric interactions to
perform two-qubit gates, reset, leakage recovery and to read out the qubits. In this architecture, …

Parametric amplification by coupled flux qubits

M Rehák, P Neilinger, M Grajcar, G Oelsner… - Applied Physics …, 2014 - pubs.aip.org
… We report parametric amplification of a microwave signal in a Kerr medium formed from
superconducting qubits. Two mutually coupled flux qubits, embedded in the current antinode of a …

Superconducting qubits

MH Devoret, JM Martinis - Les Houches, 2004 - Elsevier
parametric dependence of the coefficient of σ X , which can be viewed on one hand as how
much the qubit can be tuned by an external control parameter, … variations in that parameter. It …

Parametric control of a superconducting flux qubit

S Saito, T Meno, M Ueda, H Tanaka, K Semba… - Physical review …, 2006 - APS
parametric control demonstrated in this work widens the frequency range of microwaves for
controlling the qubit … nonlinear phenomena in superconducting qubits with strong microwave …

Superconducting qubits: A short review

MH Devoret, A Wallraff, JM Martinis - arXiv preprint cond-mat/0411174, 2004 - arxiv.org
Superconducting qubits are solid state electrical circuits fabricated using techniques borrowed
from conventional integrated circuits. They are based on the Josephson tunnel junction, …

Parametric coupling for superconducting qubits

P Bertet, C Harmans, JE Mooij - Physical Review B—Condensed Matter and …, 2006 - APS
… to couple two superconducting charge or flux qubits biased at their symmetry points with
unequal energy splittings. Modulating the coupling constant between two qubits at the sum or …

Rapid and unconditional parametric reset protocol for tunable superconducting qubits

Y Zhou, Z Zhang, Z Yin, S Huai, X Gu, X Xu… - Nature …, 2021 - nature.com
parametric reset scheme for tunable superconducting qubits. By parametric modulation
of the qubit frequency, a controllable interaction is generated between the qubit and a lossy …

Single-shot read-out of a superconducting qubit using a Josephson parametric oscillator

P Krantz, A Bengtsson, M Simoen, S Gustavsson… - Nature …, 2016 - nature.com
… -out technique for a superconducting qubit by dispersively coupling it with a Josephson
parametric oscillator. We employ a tunable quarter wavelength superconducting resonator and …

Quantum coherent tunable coupling of superconducting qubits

AO Niskanen, K Harrabi, F Yoshihara, Y Nakamura… - Science, 2007 - science.org
coupled superconducting qubits have been carried out with both fixed (9–15) and tunable
(16–18) coupling. … The functioning of the tunable parametric coupling is very convenient. When …

Fast parametric two-qubit gate for highly detuned fixed-frequency superconducting qubits using a double-transmon coupler

K Kubo, H Goto - Applied Physics Letters, 2023 - pubs.aip.org
… -qubit gates have been reported with superconducting qubits coupled via a single-transmon
coupler … We aim to overcome these drawbacks by the parametric-coupling method using the …