A perspective on silicon photonic quantum computing with spin qubits
Andreas Theo Pfenning, Xiruo Yan, Sebastian Gitt, Joshua Fabian, Becky Lin, Donald M. Witt, Abdelrahman E. Afifi, Adan Azem, Adam Darcie, Jingda Wu, Matthew Mitchell, Kashif M. Awan, Lukas Chrostowski, Jeff F. Young · 2022
We recently proposed a quantum computing platform that exploits circuit-bound photons to create cluster states and achieve one-way measurement-based quantum computations on arrays of photonically interfaced solid-state spin qubits with long coherence-times. Single photons are used for spin initialization, readout and for photon-mediated long-range entanglement creation. In this conference talk, we elaborate on the challenges that are faced during any practical implementation of this architecture by breaking it down into the key physical building blocks. We further discuss the constraints imposed on the spin qubits and the photonic circuit components that are set by the requirements of achieving fault-tolerant performance.