Architecture for a large-scale ion-trap quantum computer

W. K. Hensinger

Bjoern Lekitsch, Sebastian Weidt, Austin G. Fowler +3 more

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.

Grzegorz H. Kasprowicz

Darshan Thaker, Tzvetan S. Metodi, Frederic T. Chong

Rezlind Bushati, Sara Campbell, Bryan A. DeBono +13 more

Quantinuum has developed a trapped-ion quantum computer based on the QCCD architecture which exhibits high-delity operations, mid-circuit measurements and full connectivity. This talk will introduce the QCCD architecture and discuss how we can address scaling challenges with integrated photonics for visible light to facilitate large-scale quantum computing.

Mark S. Gulley, Richard Hughes, J.J. Gómez +11 more