非高斯連續變量積體光電晶片量子計算-非高斯連續變量積體光電晶片量子計算(1/5)

Among all the existing technologies to implement quantum computers, quantum photonic computers (QPC) are the only solution to work at room temperature.Based on our recent demonstration on CNOT gate operation of photonic qubits with Si and Si3N4 waveguide circuits, in this proposal entitled “Integrated Photonic Quantum Computing Based on Non-Gaussian Continuous-Variable States with Error Code Correction”, we emphasize on the implementation, design, validation, and application of quantum photonic chip, by heterogeneous integration on quantum light source and silicon photonics. Instead of using photons or entangled photons pairs, which suffers from the low probabilities and rare success events in post-selection, our target is to generate non-Gaussian continues variables (CV) with quantum error code correction, serving as a critical step toward a large-scale fault-tolerant QPC, which is also the strategy used inthe leading PQC company, Xanadu and GlobalFoundries, toward a scalable faulttolerant photonic quantum computer.In this five-year project, we combine the expertise in integrated quantum light source (PI and co-PI of sub-Project II: Prof. Yen-Hung Chen), quantum optics (co-PI of sub-Project I: Ray-Kuang Lee), silicon photonics (joint-PI of sub-Project II, Prof. Ming-Chang M. Lee), quantum state validation (co-PI of sub-Project III: Jun-Yi Wu), quantum error code correction and error mitigation (co-PI of sub- Project IV, Prof. Shin-Tza Wu), and photon number resolving detectors (co-PI of sub-Project V: Yi-Shan Lee), to form a strong teamwork on the development of chip-based non-Gaussian CV state sources and the technology of Gottesman–Kitaev–Preskill (GKP)-state generation and metrology. To realize a fault-tolerant quantum computation, in this team, technologies of the verificationof multiphoton states as well as the error-code correction in large-scale PQC systems will also be studied and implemented. Through the support of this project, this Team will bring together our current strengths in chip fabrication, quantum photonics, semiconductor detectors, and software validation, providing a platform for further development on the quantum chips, quantum computers, quantum communication, and quantum satellite network.