Microwave Quantum Network

Recent advances in quantum hardware have highlighted both the importance and the growing feasibility of scaling up quantum systems and distributing entanglement across physically separated qubits. Researchers are pursuing multiple paths toward this goal: on one front, novel hardware platforms (e.g. new qubit technologies) promise to support much larger qubit counts if their gate performance can be improved and made reproducible; on another front, established platforms like superconducting qubits are being expanded by linking multiple smaller devices together in a networked architecture. In this talk, we present our recent progress toward building a large-scale quantum computing system using a modular, microwave-linked architecture. In particular, we show our work on developing a microwave interconnect that can entangle qubits across separate quantum chips. These could be homogeneous superconducting processors or heterogeneous microwave quantum modules, effectively forming an entanglement network between chips. This approach offers a promising route to scale quantum processors beyond the confines of a single chip with only fabrication compatible components, enabling distributed quantum entanglement and computation. We will discuss the design and implementation of this microwave quantum network, our experimental results in creating the interconnect for entangling qubits between modules, and the key challenges ahead on the path toward large-scale modular quantum systems.

Speaker: Jie Luo, Anyon Technologies

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