Towards cavity-mediated coupling of spin-qubits

ORAL

Abstract

While single-qubit gates with fidelities approaching superconducting qubits have been demonstrated [1] and two-qubit gates based on nearest-neighbour exchange are being realized with improving performance on length scales of a few hundred nanometers [2-4], cavity-mediated coupling of spin-qubits over ~1 cm distances remains an outstanding challenge. With the recent demonstration of strong-coupling of a single electron-spin to the electric field of a cavity photon [5, 6], this long-range entanglement between two spin-qubits is within reach. Here we present recent progress in our effort to complete this milestone.

[1] Yoneda et al., Nat. Nanotech. 13, 102 (2018)
[2] Zajac et al., Science 359, 439 (2018)
[3] Watson et al., Nature 555, 633 (2018)
[4] Huang et al., arXiv:1806.02858
[5] Mi et al., Nature 555, 599 (2018)
[6] Samkharadze et al., Science 359, 1123 (2018)

–

Presenters

  • Felix Borjans

    Physics, Princeton University, Department of Physics, Princeton University

Authors

  • Felix Borjans

    Physics, Princeton University, Department of Physics, Princeton University

  • Xanthe Croot

    Department of Physics, Princeton University, Princeton, NJ 08544, USA, Princeton University, Department of Physics, Princeton University

  • Xiao Mi

    Department of Physics, Princeton University, Princeton, NJ 08544, USA, Department of Physics, Princeton University

  • Jason R Petta

    Princeton University, Department of Physics, Princeton University, Princeton, NJ 08544, USA, Physics, Princeton University, Department of Physics, Princeton University