Single electron charge shuttling in a linear quantum dot array

ORAL

Abstract

Recent advances in silicon spin qubits have pushed single qubit fidelities beyond 99.9% [1,2] and have lead to the realization of two-qubit gates based on exchange coupling [3-6]. In order to advance spin qubits to the next level of technological complexity, it is important to start investigating how to scale up to larger multi-component architectures. These architectures must allow for arbitrary coupling of spatially separated qubits, demanding the development of inter-qubit quantum state transfer procedures. Here we demonstrate shuttling of a single electron across a linear array of 9 series-coupled Si quantum dots in ~50 ns with an approach that is extendable to larger quantum dot arrays.

[1] Yang et al., arXiv:1807.09500
[2] Yoneda et al., Nat. Nanotech. 13, 102 (2018)
[3] Veldhorst et al., Nature 526, 410 (2015)
[4] Zajac et al., Science 359, 439 (2018)
[5] Watson et al., Nature 555, 633 (2018)
[6] Huang et al., arXiv:1806.02858

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Presenters

  • Adam Mills

    Princeton University

Authors

  • Adam Mills

    Princeton University

  • David Zajac

    Princeton University, Physics, Princeton University

  • Michael Gullans

    Princeton University, Department of Physics, Princeton University, Physics, Princeton University

  • Felix Schupp

    Princeton University, Oxford University-USE 4643

  • Thomas Hazard

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

  • Jason R Petta

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