Blueprint for a microwave ion trap quantum computer
Bjoern Lekitsch, Sebastian Weidt, Austin G. Fowler, Klaus M⊘lmer, Simon J. Devitt, W. K. Hensinger · arXiv (Cornell University) · 2015
and industrial community is working towards the realization of such a device. A large scale quantum computer is best constructed using a modular approach. We present the blueprint for an ion trap based scalable quantum computer module which makes it possible to create an arbitrarily large quantum computer architecture powered by long-wavelength radiation. This quantum computer module controls all operations as a stand-alone unit, is constructed using silicon microfabrication techniques and within reach of current technology. To perform the required quantum computations, the module makes use of long-wavelength-radiation quantum gate technology and relies only on a vacuum environment and global laser and microwave elds. To scale this microwave quantum computer architecture beyond one module we also present a new approach that makes use of ion transport between dierent modules, thereby allowing connections between arbitrarily many modules for a large scale architecture. A high-error-threshold surface error correction code making use of such module interactions can be implemented in the proposed architecture to execute fault-tolerant quantum logic operations. With only minor adjustments these modules are also suitable for alternative ion trap quantum computer architectures, such as schemes using photonic interconnects.