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Klaus Mølmer

Blueprint for a microwave trapped-ion quantum computer

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  • B. Lekitsch, Department of Physics and Astronomy, University of Sussex, Storbritannien
  • S. Weidt, Department of Physics and Astronomy, University of Sussex
  • ,
  • A. G. Fowler, Google Inc., Santa Barbara, CA 93117, USA
  • K. Mølmer
  • S. J. Devitt, Center for Emergent Matter Science, RIKEN, Wako-shi, Saitama 315-0198, Japan, Japan
  • C. Wunderlich, Department Physik, Naturwissenschaftlich-Technische Fakultät, Universität Siegen, Tyskland
  • W. K. Hensinger, Department of Physics and Astronomy, University of Sussex, Storbritannien
The availability of a universal quantum computer will have fundamental impact on a vast number of research fields and society as a whole. An increasingly large scientific and industrial community is working towards the realization of such a device. An arbitrarily large quantum computer is best constructed using a modular approach. We present a blueprint for a trapped-ion based scalable quantum computer module which makes it possible to create a scalable quantum computer architecture based on long-wavelength radiation quantum gates. The modules control all operations as stand-alone units, are constructed using silicon microfabrication techniques and they are within reach of current technology. To perform the required quantum computations, the modules make use of long-wavelength-radiation based quantum gate technology. To scale this microwave quantum computer architecture to an arbitrary size we present a fully scalable design that makes use of ion transport between different modules, thereby allowing arbitrarily many modules to be connected to construct a large-scale device. A high-error-threshold surface error correction code can be implemented in the proposed architecture to execute fault-tolerant operations. With only minor adjustments the proposed modules are also suitable for alternative trapped-ion quantum computer architectures, such as schemes using photonic interconnects.
TidsskriftScience Advances
Antal sider12
StatusUdgivet - 1 feb. 2017


  • quant-ph

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