1:15 PM - 1:30 PM
[17p-414-1] [JSAP Young Scientist Award Speech] Long-distance distribution of high-dimensional time-bin entanglement
Keywords:quantum entanglement, long-distance distribution, Time-bin state
Recently, photonic high-dimensional quantum states have been intensively investigated as a method to enlarge a Hilbert space for quantum information processing. We previously proposed and demonstrated a quantum state tomography (QST) for high-dimensional time-bin states. Here, we report the first experimental long-distance distribution of high-dimensional time-bin entangled photon pairs. By using the proposed QST, we confirmed that four-dimensional entanglement was preserved even after the photons were separated by 100 km of fiber.