Applied Physics B

, 125:154 | Cite as

Multilayer ion trap with three-dimensional microwave circuitry for scalable quantum logic applications

  • H. Hahn
  • G. Zarantonello
  • A. Bautista-Salvador
  • M. Wahnschaffe
  • M. Kohnen
  • J. Schoebel
  • P. O. Schmidt
  • C. OspelkausEmail author


We present a multilayer surface-electrode ion trap with embedded 3D microwave circuitry for implementing entangling quantum logic gates. We discuss the electromagnetic full-wave simulation procedure that has led to the trap design and the characterization of the resulting microwave field pattern using a single ion as a local field probe. The results agree with simulations within the uncertainty; compared to previous traps, this design reduces detrimental AC Zeeman shifts by three orders of magnitude. The design presented here can be viewed as an entangling gate component in a library for surface-electrode ion traps intended for quantum logic operations.



We acknowledge support by the PTB cleanroom facility team and funding from PTB, LUH, the clusters of excellence QUEST and Quantum Frontiers, NTH (project number 2.2.11), the EU QT Flagship project MicroQC (grant no 820314) and DFG through SFB 1227 DQ-mat, project A01.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Physikalisch-Technische BundesanstaltBraunschweigGermany
  2. 2.Institute of Quantum OpticsLeibniz Universität HannoverHannoverGermany
  3. 3.Laboratory for Nano- and Quantum EngineeringLeibniz Universität HannoverHannoverGermany
  4. 4.Department for High-Frequency TechnologyTechnische Universität BraunschweigBraunschweigGermany

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