Advanced Entanglement for Quantum Information Encoding in Photonic States

Entanglement is the most central resource in quantum information science, and advanced forms such as high-dimensional, multipartite, and hyperentanglement offer new capabilities by expanding the Hilbert space and enabling more complex correlations. Multipartite entanglement involves correlations among more than two subsystems; high-dimensional entanglement extends beyond qubits to qudits; and hyperentanglement refers to entanglement across multiple degrees of freedom simultaneously

I will present new ideas for the generation and control of such entangled photonic states, exploring their use as resources for encoding and manipulating quantum information. I will describe our experimental and theoretical work on generating a new type of highly entangled photonic states via spatial and polarization modes, and show how combining multiple degrees of freedom can enhance the channel capacity in quantum systems. Finally, I will introduce a topological scheme we developed to protect entanglement in integrated photonic platforms, offering a new route toward scalable, resilient quantum photonic technologies