Whoa, that Xanadu SOI-diamond preprint has me geeking out-10x coupling boost sounds huge for getting spins talking to photons reliably. But epitaxial growth on SOI? I’m still wrapping my head around that; is it like CVD layering diamond films directly onto silicon without the usual lattice mismatch headaches? Kinda newb question, but does anyone have a good explainer or the actual arXiv link? I tried digging but got lost in the materials science weeds.
On PsiQ integration, their latest (I think Q1 ’24 roadmap) hints at fusing Si-pho with these spin interfaces for fault-tolerant modules. Fidelity holding at 92% post-loss in sims is promising, but real-world fab yields? Anyone seen yield numbers from those hybrids? I poked at Strawberry Fields too (beginner mode: mostly copy-pasting tutorials), and even with basic loss models, entanglement swapping drops fast over 100km without memories.
What about erbium ions in SiO2 as a cheaper spin-photon alternative? Heard some French group (Orsay?) hit 99% readout fidelity last year-could that hybridize easier than diamond? Links or thoughts welcome, total noob here dying for a clearer path to scalable repeaters! 🙌