Skip to main content
SpringerLink
Log in

High-fidelity initialization and control of multiple nuclear spin qubits in silicon

  • Research Briefing
  • Published:

From Nature Nanotechnology

View current issue Submit your manuscript

A robust initialization protocol has been demonstrated for a four-qubit nuclear spin register in silicon. The protocol, driven electrically through electric-dipole spin resonance, enables high-fidelity qubit control and hence a route to a register-based quantum computer that exploits the exceptional coherence properties of atom qubits in silicon.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1: High-fidelity nuclear spin initialization in a four-qubit register.

References

  1. He, Y. et al. A two-qubit gate between phosphorus donor electrons in silicon. Nature 571, 371–375 (2019). This paper reports a fast (0.8 ns) two-qubit √SWAP gate between electron spins on different nuclear spin qubit registers.

    Article  CAS  PubMed  Google Scholar 

  2. Kranz, L. et al. Exploiting a single-crystal environment to minimize the charge noise on qubits in silicon. Adv. Mater. 32, 2003361 (2020). This paper reports the extremely low charge noise experienced by electron spin qubits in multi-nuclear spin qubit registers.

    Article  CAS  Google Scholar 

  3. Keith, D. et al. Ramped measurement technique for robust high-fidelity spin qubit readout. Sci. Adv. 8, eabq0455 (2022). This paper demonstrates >99.9% fidelity for electron spin read-out in multi-nuclear spin qubit registers.

    Article  PubMed  PubMed Central  Google Scholar 

  4. Kiczynski, M. et al. Engineering topological states in atom-based semiconductor quantum dots. Nature 606, 694–699 (2022). This paper reports on high-precision placement of donor quantum dots for quantum simulation.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  5. Muhonen, J. T. et al. Storing quantum information for 30 seconds in a nanoelectronic device. Nature Nanotechnol. 9, 986–991 (2014). This paper reports on high-fidelity control of electron and nuclear spin qubits in silicon.

    Article  CAS  Google Scholar 

  6. Pla, J. J. et al. High-fidelity readout and control of a nuclear spin qubit in silicon. Nature 496, 334–338 (2013). This paper reports the first demonstration of NMR on a phosphorus donor in silicon.

    Article  CAS  PubMed  Google Scholar 

Download references

Additional information

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

This is a summary of: Reiner, J. et al. High-fidelity initialization and control of electron and nuclear spins in a four-qubit register. Nat. Nanotechnol. https://doi.org/10.1038/s41565-023-01596-9 (2024).

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

High-fidelity initialization and control of multiple nuclear spin qubits in silicon. Nat. Nanotechnol. 19, 584–585 (2024). https://doi.org/10.1038/s41565-024-01603-7

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/s41565-024-01603-7

  • Springer Nature Limited

Search

Navigation