Synchronization of Multiple Coupled rf-SQUID Flux Qubits

Abstract

A practical strategy for synchronizing the properties of compound Josephson junction rf-SQUID qubits on a multiqubit chip has been demonstrated. The impacts of small ($\sim 1$) fabrication variations in qubit inductance and critical current can be minimized by the application of a custom tuned flux offset to the CJJ structure of each qubit. This strategy allows for simultaneous synchronization of the qubit persistent current and tunnel splitting over a range of external bias parameters that is relevant for the implementation of an adiabatic quantum processor.

References in corpus (12)

• Charge insensitive qubit design derived from the Cooper pair box
• Suppressing Charge Noise Decoherence in Superconducting Charge Qubits
• 1/f Flux Noise in Josephson Phase Qubits
• Realizable Hamiltonians for Universal Adiabatic Quantum Computers
• Tuning the Gap of a Superconducting Flux Qubit
• Direct observation of quantum criticality in Ising spin chains
• A Compound Josephson Junction Coupler for Flux Qubits With Minimal Crosstalk
• Consistency of ground state and spectroscopic measurements on flux qubits
• Probing Noise in Flux Qubits via Macroscopic Resonant Tunneling
• Geometrical dependence of low frequency noise in superconducting flux qubits
• Macroscopic Resonant Tunneling in the Presence of Low Frequency Noise
• Coherent oscillations in a superconducting tunable flux qubit manipulated without microwaves

Cited by in corpus (5)

• Adiabatic Quantum Simulation of Quantum Chemistry
• Experimental Demonstration of a Robust and Scalable Flux Qubit
• Real-time simulation of flux qubits used for quantum annealing
• Experimental Demonstrations of Native Implementation of Boolean Logic Hamiltonian in a Superconducting Quantum Annealer
• A full-vortex flux qubit for charged particle optics