Distilling Entanglement Between Remote Superconducting Qubits

ORAL

Abstract

The ability to generate entanglement between qubits connected by a lossy channel is an important primitive for large scale quantum information processing. Entanglement distillation allows one to counter this imperfection by consolidating the entanglement between several weakly entangled qubit pairs into a single strongly entangled qubit pair. We present an experiment where we can generate remote entanglement between two nodes, each containing a pair of superconducting transmon qubits, with matching dispersive shifts to their respective cavities. By performing local half-parity measurements, we can detect photon loss in the channel connecting the nodes, and herald the creation of a Bell state with enhanced fidelity. We discuss experimental progress towards the implementation of this protocol.

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Presenters

  • Evan Zalys-Geller

    Department of Applied Physics, Yale Univ, Applied Physics, Yale University

Authors

  • Evan Zalys-Geller

    Department of Applied Physics, Yale Univ, Applied Physics, Yale University

  • Phillipe Campagne-Ibarcq

    Department of Applied Physics, Yale University, Applied Physics, Yale University, Laboratoire Pierre Aigrain, Ecole Normale Supérieure, Department of Applied Physics, Yale Univ

  • Anirudh Narla

    Department of Applied Physics, Yale Univ, Applied Physics, Yale University

  • Shyam Shankar

    Applied Physics, Yale University, Department of Applied Physics, Yale University, Department of Applied Physics, Yale Univ, Yale Univ

  • Christopher Axline

    Physics and Applied Physics, Yale University, Applied Physics, Yale University, Dept. of Applied Physics, Yale University, Department of Applied Physics, Yale Univ

  • Luke Burkhart

    Applied Physics, Yale University, Physics and Applied Physics, Yale University, Department of Applied Physics, Yale Univ, Yale University, Dept. of Applied Physics, Yale University, Departments of Applied Physics and Physics, Yale University

  • Wolfgang Pfaff

    Applied Physics, Yale University, Physics and Applied Physics, Yale University, Department of Applied Physics, Yale Univ

  • Luigi Frunzio

    Yale University, Applied Physics, Yale University, Physics and Applied Physics, Yale University, Applied Physics, Yale Univ, Dept. of Applied Physics, Yale University, Department of Applied Physics, Yale Univ, Yale Univ, Departments of Applied Physics and Physics, Yale University

  • Robert Schoelkopf

    Yale University, Applied Physics, Yale University, Dept. of Applied Physics, Yale University, Department of Applied Physics, Yale Univ

  • Michel Devoret

    Yale University, Applied Physics, Yale University, Department of Applied Physics, Yale University, Applied Physics, Yale Univ, Physics and Applied Physics, Yale University, Yale Univ, Dept. of Applied Physics, Yale University, Department of Applied Physics, Yale Univ