Cross-resonance interactions between superconducting qubits with variable detuning Article Swipe

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Matthew Ware , Blake Johnson , Jay Gambetta , Thomas Ohki , Jerry M. Chow , B. L. T. Plourde ·

YOU? · · 2019 · Open Access · · DOI: https://doi.org/10.48550/arxiv.1905.11480

Cross-resonance interactions are a promising way to implement all-microwave two-qubit gates with fixed-frequency qubits. In this work, we study the dependence of the cross-resonance interaction rate on qubit-qubit detuning and compare with a model that includes the higher levels of a transmon system. To carry out this study we employ two transmon qubits--one fixed frequency and the other flux tunable--to allow us to vary the detuning between qubits. We find that the interaction closely follows a three-level model of the transmon, thus confirming the presence of an optimal regime for cross-resonance gates.

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Transmon Qubit Superconducting quantum computing Resonance (particle physics) Physics Microwave Quantum mechanics Topology (electrical circuits) Quantum Electrical engineering Engineering

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/1905.11480
PDF: https://arxiv.org/pdf/1905.11480
OA Status: green
Cited By: 12
Related Works: 10
OpenAlex ID: https://openalex.org/W2241914345

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DOI: https://doi.org/10.48550/arxiv.1905.11480

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Title: Cross-resonance interactions between superconducting qubits with variable detuning

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Type: preprint

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Language: en

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Publication year: 2019

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Publication date: 2019-05-27

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Authors: Matthew Ware, Blake Johnson, Jay Gambetta, Thomas Ohki, Jerry M. Chow, B. L. T. Plourde

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Landing page: https://arxiv.org/abs/1905.11480

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PDF URL: https://arxiv.org/pdf/1905.11480

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Concepts: Transmon, Qubit, Superconducting quantum computing, Resonance (particle physics), Physics, Microwave, Quantum mechanics, Topology (electrical circuits), Quantum, Electrical engineering, Engineering

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Cited by: 12

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