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Penning micro-trap for quantum computing

  • Shreyans Jain*
  • , Tobias Sägesser
  • , Pavel Hrmo
  • , Celeste Torkzaban
  • , Martin Stadler
  • , Robin Oswald
  • , Chris Axline
  • , Amado Bautista-Salvador
  • , Christian Ospelkaus
  • , Daniel Kienzler
  • , Jonathan Home
  • *Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer review

Abstract

Trapped ions in radio-frequency traps are among the leading approaches for realizing quantum computers, because of high-fidelity quantum gates and long coherence times1–3. However, the use of radio-frequencies presents several challenges to scaling, including requiring compatibility of chips with high voltages4, managing power dissipation5 and restricting transport and placement of ions6. Here we realize a micro-fabricated Penning ion trap that removes these restrictions by replacing the radio-frequency field with a 3 T magnetic field. We demonstrate full quantum control of an ion in this setting, as well as the ability to transport the ion arbitrarily in the trapping plane above the chip. This unique feature of the Penning micro-trap approach opens up a modification of the quantum charge-coupled device architecture with improved connectivity and flexibility, facilitating the realization of large-scale trapped-ion quantum computing, quantum simulation and quantum sensing.

Original languageEnglish
Pages (from-to)510-514
Number of pages5
JournalNATURE
Volume627
E-pub ahead of print13 Mar 2024
DOIs
Publication statusPublished - 21 Mar 2024

ASJC Scopus subject areas

  • General

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