Blind quantum computing (BQC) allows a client to delegate quantum computations to a server while keeping both data and algorithms private.

However, practical BQC faces major challenges when scaling to fault-tolerant regimes due to losses, overhead, and limited client capabilities.

In this talk, I will present our recent theoretical and experimental advances towards scalable, fault-tolerant BQC using hybrid matter-photon systems. On the theory side, we introduce an architecture where the server handles error correction on matter qubits while the client performs delegated blind gates via photonic measurements, enabling significant reductions in communication overhead and improved error thresholds (Baranes et al., arXiv:2505.21621).

On the experimental side, I will present our recent demonstration of a universal blind gate set across a distributed two-node quantum network of silicon-vacancy centers in nanophotonic diamond cavities, realizing intra-node and inter-node blind gates and a blind distributed algorithm (Wei et al., Science, 2025).

Together, these results establish a scalable foundation for deep circuit blind quantum computing on matter-based platforms.

References:

Experimental paper:  https://doi.org/10.1126/science.adu6894; Theory paper: https://arxiv.org/abs/2505.21621