Flexible entangled-state generation in linear optics
Brendan Pankovich, Alex Neville, Angus Kan, S. Omkar, Kwok Ho Wan, Kamil Brádler · Physical Review A · 2024
Entangled dual-rail photonic qubit states are important resource states for measurement-based and fusion-based quantum computing. However, their generation is highly challenging due to the probabilistic nature of entangling operations. Here, the authors introduce a formalism using ZX diagrams to design linear optical systems that can generate entangled multiqubit states of dual-rail photonic qubits. This formalism makes it easier to compare methods for creating a desired photonic state and to find the most optimal one.