Generation and Confirmation of a (100x100)-dimensional entangled Quantum System

Understand

Entangled quantum systems have properties that have fundamentally overthrown the classical worldview.

• Increasing the complexity of entangled states by expanding their dimensionality allows the implementation of novel fundamental tests of nature, and moreover also enables genuinely new protocols for quantum information processing.
• Here we present the creation of a (100x100)-dimensional entangled quantum system, using spatial modes of photons.
• For its verification we develop a novel nonlinear criterion which infers entanglement dimensionality of a global state by using only information about its subspace correlations.