Blueprint for a microwave trapped ion quantum computer

Lekitsch, Bjorn, Weidt, Sebastian, Fowler, Austin G, Møelmer, Klaus, Devitt, Simon J, Wunderlich, Christof and Hensinger, Winfried K (2017) Blueprint for a microwave trapped ion quantum computer. Science Advances, 3 (2). e1601540. ISSN 2375-2548

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Abstract

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.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Atomic, Molecular and Optical Physics Research Group
Subjects: Q Science > QC Physics
Depositing User: Richard Chambers
Date Deposited: 06 Feb 2017 16:20
Last Modified: 07 Mar 2017 10:36
URI: http://sro.sussex.ac.uk/id/eprint/66642

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Project NameSussex Project NumberFunderFunder Ref
Quantum technology with nanofabricated ion trap chipsG0308EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/G007276/1
UK Quantum Technology Hub: NQIT-Networked Quantum Information TechnologiesG1503EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/M013243/1
UK Quantum Technology Hub for Sensors and MetrologyG1511EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/M013294/1
Integrated Quantum Information TechnologyG0650EUROPEAN UNIONGA 270843
UnsetUnsetArmy Research LabW911NF-12-2-0072
UnsetUnsetU.S. Army Research OfficeW911NF-14-2-0106