AI Article Synopsis
- Using all-microwave control in superconducting quantum circuits helps reduce noise and wiring expenses.
- A swap interaction facilitated by a coupler transmon enhances the efficiency of operations between two data transmons under microwave drive.
- This method allows for the implementation of a controlled-Z gate that operates effectively with minimal residual interference, even when there are significant differences in frequency between the transmons.
Article Abstract
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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| http://dx.doi.org/10.1103/PhysRevLett.130.260601 | DOI Listing |
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