Blueprint for a Scalable Photonic Fault-Tolerant Quantum Computer

• DOI: 10.22331/q-2021-02-04-392
• Publication Date: 2021-02-04T19:35:27Z
• Authors: J. Eli Bourassa; Rafael N. Alexander; Michael Vasmer; Ashlesha Patil; Ilan Tzitrin; Takaya Matsuura; Daiqin Su; Ben Q. Baragiola; Saikat Guha; Guillaume Dauphinais; Krishna K. Sabapathy; Nicolas C. Menicucci; Ish Dhand
• Keywords: Quantum Physics; Physics; QC1-999; 0103 physical sciences; FOS: Physical sciences; Quantum Physics (quant-ph); 01 natural sciences

Photonics is the platform of choice to build a modular, easy-to-network quantum computer operating at room temperature. However, no concrete architecture has been presented so far that exploits both advantages qubits encoded into states light and modern tools for their generation. Here we propose such design scalable fault-tolerant photonic informed by latest developments in theory technology. Central our generation manipulation three-dimensional resource comprising bosonic squeezed vacuum states. The proposal state-of-the-art procedures non-deterministic combined with strengths continuous-variable computation, namely implementation Clifford gates using easy-to-generate Moreover, based on two-dimensional integrated chips used produce qubit cluster state one temporal two spatial dimensions. By reducing experimental challenges as compared existing architectures enabling room-temperature opens door fabrication operation, which may allow photonics leap-frog other platforms path millions qubits.