  Atom-like defects or color centers (CC's) in nanostructured diamond are a
leading platform for optically linked quantum technologies, with recent
advances including memory-enhanced quantum communication, multi-node quantum
networks, and spin-mediated generation of photonic cluster states. Scaling to
practically useful applications motivates architectures meeting the following
criteria: C1 individual optical addressing of spin qubits; C2 frequency tuning
of CC spin-dependent optical transitions; C3 coherent spin control in CC ground
states; C4 active photon routing; C5 scalable manufacturability; and C6 low
on-chip power dissipation for cryogenic operations. However, no architecture
meeting C1-C6 has thus far been demonstrated. Here, we introduce a hybrid
quantum system-on-chip (HQ-SoC) architecture that simultaneously achieves
C1-C6. Key to this advance is the realization of piezoelectric strain control
of diamond waveguide-coupled tin vacancy centers to meet C2 and C3, with
ultra-low power dissipation necessary for C6. The DC response of our device
allows emitter transition tuning by over 20 GHz, while the large frequency
range (exceeding 2 GHz) enables low-power AC control. We show acoustic
manipulation of integrated tin vacancy spins and estimate single-phonon
coupling rates over 1 kHz in the resolved sideband regime. Combined with
high-speed optical routing with negligible static hold power, this HQ-SoC
platform opens the path to scalable single-qubit control with optically
mediated entangling gates.
