Implementing logical oscillators by parametric two photon blockade

ORAL

Abstract

Present superconducting quantum architectures make use of transmon qubits as logical elements and harmonic oscillators as quantum memories due to their improved coherence times. In this talk, we report a design for performing logical operations directly on the oscillator single photon manifold by strong hybridisation of the two photon fock state without compromising coherence. We implement a two cavity architecture with flux-tunable coupling using a superconducting quantum interference device. The cavity resonances can be statically tuned to be first order insensitive to flux noise while the coupling can be parametrically modulated to selectively activate a three wave mixing process for generating anharmonicity. Experimental results of coupler parametric modulation will be presented.

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Presenters

  • Andrei Vrajitoarea

    Department of Electrical Engineering, Princeton University

Authors

  • Andrei Vrajitoarea

    Department of Electrical Engineering, Princeton University

  • Ziwen Huang

    Department of Physics and Astronomy, Northwestern Univ, Department of Physics & Astronomy, Northwestern University

  • Peter Groszkowski

    Department of Physics & Astronomy, Northwestern University, Northwestern University, Physics, Northwestern University

  • Jens Koch

    Northwestern Univeristy, Department of Physics and Astronomy, Northwestern University, Department of Physics and Astronomy, Northwestern Univ, Department of Physics & Astronomy, Northwestern University, Northwestern University, Physics, Northwestern University

  • Andrew Houck

    Electrical Engineering, Princeton University, Princeton University, Department of Electrical Engineering, Princeton University, Princeton University, Department of Electrical Engineering