Generalized switchable coupling for superconducting qubits using double resonance

Abstract

We propose a method for switchable coupling between superconducting qubits using double resonance. The inter-qubit coupling is achieved by applying near-resonant oscillating fields to the two qubits. The deviation from resonance relaxes the criterion of strong driving fields while still allowing for a fully entangling two-qubit gate. This method avoids some of the shortcomings of previous proposals for switchable coupling. We discuss the possible application of our proposal to a pair of inductively coupled flux qubits, and we consider the extension to phase qubits.

7 pages, 4 figures

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Cited by in corpus (28)

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• High-fidelity quantum operations on superconducting qubits in the presence of noise
• Coupling superconducting flux qubits at optimal point via dynamic decoupling with the quantum bus
• Amplitude spectroscopy of two coupled qubits
• Protecting entanglement in superconducting qubits
• High Coherence Plane Breaking Packaging for Superconducting Qubits
• Efficient purification protocols using iSWAP gates in solid-state qubits
• Optimal control for fast and high-fidelity quantum gates in coupled superconducting flux qubits
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• Selective darkening of degenerate transitions for implementing quantum controlled-NOT gates
• Switchable coupling for superconducting qubits using double resonance in the presence of crosstalk
• Relaxation, decoherence and steady-state population inversion in qubits doubly dressed by microwave and radiofrequency fields
• Variable-frequency-controlled coupling in charge qubit circuits: Effects of microwave field on qubit-state readout
• Extensible 3D architecture for superconducting quantum computing
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• Coupling a single Nitrogen-Vacancy center to a superconducting flux qubit in the far off resonance regime
• Realisation of adiabatic and diabatic CZ gates in superconducting qubits coupled with a tunable coupler
• Two-qubit parametric amplifier: large amplification of weak signals
• Pseudo-Rabi oscillations in superconducting flux qubits in the classical regime
• Stationary entanglement in strongly coupled qubits
• Non-Markovian entanglement dynamics in coupled superconducting qubit systems
• Simulating systems of itinerant spin-carrying particles using arrays of superconducting qubits and resonators
• Implementation of standard quantum error correction codes for solid-state qubits
• Tunable interaction of superconducting flux qubits in circuit QED
• Dynamical decoupling of superconducting qubits