Networking superconducting quantum computers is a longstanding challenge in quantum
science. The typical approach has been to cascade transducers: converting to optical
frequencies at the transmitter and to microwave frequencies at the receiver. However, the
small microwave-optical coupling and added noise have proven formidable obstacles.
Instead, we propose optical networking via heralding end-to-end entanglement with one
detected photon and teleportation. This new protocol can be implemented on standard …

… Our approach also allows efficient and high-fidelity heralded state transfer to other physical
modalities including trapped ions, cold atoms, solid-state spin systems, or another traveling
photon (corresponding to heralded MO quantum state transduction). Our approach unifies and
simplifies entanglement generation between superconducting devices and other physical
modalities in quantum networks. … Our approach unifies and simplifies entanglement generation
between superconducting devices and other physical modalities in quantum networks. …