High-dimensional photonic quantum states for the development of use cases in information processing

PROJECT COST:

425 178 $

PRIMA CONTRIBUTION:

188 928 $

PROJECT DETAILS:

Quantum technologies (QTs), including quantum computing, information processing, and sensing, are expected to transform the future of industries and society. Significant efforts are underway to develop integrated, cost-effective, and reproducible platforms. Quantum photonics represents a promising pathway toward this goal. However, phtonic platforms based on multi-photon qubits exhibit performance degradation as the photon number increases.

This project seeks to overcome this limitation by leveraging qudits—quantum superposition states with multiple discrete levels. Such states offer the capacity to encode large volumes of information while maintaining low error rates and strong resilience to noise. The research will focus on: (1) developing an integrated on-chip platform for the generation of complex multi-photon entangled states through time- and frequency-domain qudit entanglement, and (2) exploring their potential in applied use-case scenarios.

This project, which aims to provide an integrated quantum computing platform to a broader audience (e.g., industry and government organizations), will contribute to strengthening Canada’s leading position in quantum science and to training the next generation skilled workforce in quantum technologies. Our industrial partners will also benefit from the project outcomes by utilizing and commercializing this platform for applications in quantum information processing and quantum networks.