Quantum Graph States are a fundamental resource for quantum information processing. Different graph states can be used for universal quantum computing, quantum repeaters and quantum sensing. While the generation of those states has been proved to be remarkably hard, recent developments in the manipulation of so-called Quantum Dots (QD) allow for completely new directions in the generation of photonic graph states. Single QDs can be used to deterministically generate a few types of arbitrarily large graph states, which can be fused together via linear optical circuits to generate larger and arbitrarily complex states. The optimal quantum circuits and codes for creating photonic graph states using linear optics is, however, not known. By optimal we mean the scheme that reduces the engineering cost of its implementation to the minimum. Here, we address this big challenge head-on. Equipped with the new QD resource, this project proposes the development of a novel simulation framework to support the design of linear optical circuits to generate large dimension cluster states based on quantum dots with realistic error models.

Industry Partner(s):Quantum Bridge Technologies Inc

Academic Institution:University of Toronto

Academic Researcher: Qian, Li

Focus Areas: Quantum

Platforms: Cloud, GPU