Hybrid entanglement carrying orbital angular momentum

Hybrid entanglement carrying orbital angular momentum Hybrid Entanglement Carrying Orbital Angular Momentum Hybrid entanglement that incorporates orbital angular momentum (OAM) is a cutting-edge topic in quantum optics and photonic quantum information science . This area focuses on combining different degrees of freedom—such as polarization and spatial modes—into a single entangled quantum system. By leveraging the OAM of photons, researchers can create high-dimensional entangled states, greatly enhancing information capacity and resistance to noise in quantum communication. Photons carrying OAM possess a helical phase front , characterized by an azimuthal phase factor of the form exp(iℓφ), where ℓ is the topological charge representing the OAM quantum number. These modes can, in principle, span an infinite-dimensional Hilbert space, offering a powerful tool for encoding quantum information. When these OAM states are entangled with other properties like polarization, time-bin, o...