CNOT gate for superconducting qubits biased at their symmetry points

ORAL

Abstract

A number of different techniques have been proposed and demonstrated in the past few years for implementing two-qubit gates in a system of two coupled superconducting qubits biased at their symmetry points. Most of these techniques implement the iSWAP gate. I will discuss a new technique that implements the CNOT gate. The two qubits are driven at the frequency of the target qubit, and the amplitudes applied to the two qubits are chosen such that the target qubit undergoes Rabi oscillations for only one of the two possible states of the control qubit. As a result a CNOT gate can be implemented.

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Authors

  • Sahel Ashhab

    • RIKEN \& University of Michigan
    • RIKEN and University of Michigan
    • Institute of Physical and Chemical Research (RIKEN) Japan and Physics Department, University of Michigan
    • Advanced Science Institute, RIKEN, Wako-shi, Japan

  • Franco Nori

    • Advanced Science Institute, RIKEN, Wako-shi, Japan

  • Pieter de Groot

    • Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands

  • Kees Harmans

    • Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands

  • Hans Mooij

    • Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands

  • J\"urgen Lisenfeld

    • Karlsruher Institute of Technology, Germany

  • Adrian Lupascu

    • Institute for Quantum Computing, University of Waterloo, Canada