Long-distance transmon coupler with -gate fidelity above 99.8%

HIGHLIGHTS

• who: Marxer Fabian from the IQM Computers, Espoo, FinlandAalto University have published the research: Long-Distance Transmon Coupler with -Gate Fidelity above 99.8%, in the Journal: (JOURNAL) of 31/08/2022
• what: The authors demonstrate a tunable qubit-qubit coupler based on a floating transmon device which allows the authors to place qubits at least 2 mm apart from each other while maintaining over 50-MHz coupling between the coupler and the qubits. Using the proposed flexible and scalable architecture the authors demonstrate a controlled-Z gate with (99.81 u00b1 0.02)% fidelity . . .
  

   

  

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