Blueprint for a microwave trapped ion quantum computer.
The availability of a universal quantum computer may have a fundamental impact on a vast number of research fields and on society as a whole. An increasingly large scientific and industrial community is working toward the realization of such a device. An arbitrarily large quantum computer may best be constructed using a modular approach. We present a blueprint for a trapped ion-based scalable quantum computer module, making 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 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 a large 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 appropriate adjustments, the proposed modules are also suitable for alternative trapped ion quantum computer architectures, such as schemes using photonic interconnects.
Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, U.K.
Bjoern
B
Lekitsch
Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, U.K.
Sebastian
S
Weidt
Google Inc., Santa Barbara, CA 93117, USA.
Austin G
AG
Fowler
Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark.
Klaus
K
Mølmer
Center for Emergent Matter Science, RIKEN, Wako-shi, Saitama 315-0198, Japan.
Simon J
SJ
Devitt
Department Physik, Naturwissenschaftlich-Technische Fakultät, Universität Siegen, 57068 Siegen, Germany.
Christof
C
Wunderlich
Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, U.K.
Winfried K
WK
Hensinger
Quantum Information Processing; Quantum computing; ion trapping; quantum technology; surface error correction