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)
[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)
*Research sponsored by DoD contract No. H98230-15-C0453, ARO grant No. W911NF-15-1-0149 and the Gordon and Betty Moore Foundation's EPiQS Initiative through grant GBMF4535. Devices were fabricated in the Princeton University Quantum Device Nanofabrication Laboratory.
–
Presenters
-
Felix Borjans
- Physics, Princeton University
- Department of Physics, Princeton University