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Technologies for trapped-ion quantum information systems

Progress toward scalability with hybrid systems

Abstract

Scaling up from prototype systems to dense arrays of ions on chip, or vast networks of ions connected by photonic channels, will require developing entirely new technologies that combine miniaturized ion trapping systems with devices to capture, transmit, and detect light, while refining how ions are confined and controlled. Building a cohesive ion system from such diverse parts involves many challenges, including navigating materials incompatibilities and undesired coupling between elements. Here, we review our recent efforts to create scalable ion systems incorporating unconventional materials such as graphene and indium tin oxide, integrating devices like optical fibers and mirrors, and exploring alternative ion loading and trapping techniques.

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Acknowledgments

We gratefully acknowledge support from the MQCO Program with funding from IARPA, the Quest program with funding from DARPA, the Air Force Office of Scientific Research MURI on Ultracold Molecules, and the NSF Center for Ultracold Atoms. AME, DG, and AB also gratefully acknowledge the support of the National Science and Engineering Research Council of Canada’s Postgraduate Scholarship program.

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Eltony, A.M., Gangloff, D., Shi, M. et al. Technologies for trapped-ion quantum information systems. Quantum Inf Process 15, 5351–5383 (2016). https://doi.org/10.1007/s11128-016-1298-8

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Keywords

  • Ion traps
  • Quantum computation
  • Quantum information
  • Trapped ions
  • Ion–photon interface
  • Graphene
  • Indium tin oxide
  • Cavity cooling
  • Optical trapping
  • Micromirror
  • Motional heating
  • CMOS ion trap
  • Hybrid trap
  • Scalable