All-Microwave Manipulation of Superconducting Qubits with a Fixed-Frequency Transmon Coupler
All-microwave control of fixed-frequency superconducting quantum computing circuits is advantageous for minimizing the noise channels and wiring costs. Here we introduce a swap interaction between two data transmons assisted by the third-order nonlinearity of a coupler transmon under a microwave dri...
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Veröffentlicht in: | Physical review letters 2023-06, Vol.130 (26), p.260601-260601, Article 260601 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | All-microwave control of fixed-frequency superconducting quantum computing circuits is advantageous for minimizing the noise channels and wiring costs. Here we introduce a swap interaction between two data transmons assisted by the third-order nonlinearity of a coupler transmon under a microwave drive. We model the interaction analytically and numerically and use it to implement an all-microwave controlled-Z gate. The gate based on the coupler-assisted swap transition maintains high drive efficiency and small residual interaction over a wide range of detuning between the data transmons. |
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ISSN: | 0031-9007 1079-7114 |
DOI: | 10.1103/PhysRevLett.130.260601 |