Modular architectures for quantum computers

In this talk, I will discuss how modular quantum architectures are a promising direction for scalable quantum computers. Modules are natural building blocks that limit device complexity. In each module, the interplay of physical errors and quantum error correction will both inform the design and point to potential advatanges of heterogeneous qubit architectures. The logical connectivity between modules does not need to be geometric, and this addtional freedom enables the implementation of resource-efficient finite-rate quantum error correction codes. I will conclude by discussing the state-of-the art in modular quantum computers and point to crucial next steps for achieving scalability.