Chip-to-chip photonic quantum teleportation over optical fibers of 12.3km
Dongning Liu, Zhanping Jin, Jingyuan Liu, Xiaotong Zou, Xiaosong Ren,, Hao Li, Lixing You, Xue Feng, Fang Liu, Kaiyu Cui, Yidong Huang, Wei Zhang

TL;DR
This paper demonstrates a chip-to-chip photonic quantum teleportation over 12.3 km of optical fiber, utilizing integrated quantum circuits and active stabilization to advance quantum network capabilities.
Contribution
It introduces integrated quantum photonic circuits for long-distance chip-to-chip teleportation with active stabilization in a star-topology quantum network.
Findings
Achieved 12.3 km quantum teleportation over optical fibers.
Designed and fabricated three integrated quantum photonic circuits.
Implemented active feedback for stable quantum interference.
Abstract
Quantum teleportation is a crucial function in quantum networks. The implementation of photonic quantum teleportation could be highly simplified by quantum photonic circuits. To extend chip-to-chip teleportation distance, more effort is needed on both chip design and system implementation. In this work, we demonstrate a chip-to-chip photonic quantum teleportation over optical fibers under the scenario of star-topology quantum network. Time-bin encoded quantum states are used to achieve a long teleportation distance. Three photonic quantum circuits are designed and fabricated on a single chip, each serving specific functions: heralded single-photon generation at the user node, entangled photon pair generation and Bell state measurement at the relay node, and projective measurement of the teleported photons at the central node. The unbalanced Mach-Zehnder interferometers (UMZI) for…
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Taxonomy
TopicsOptical Network Technologies · Advanced Photonic Communication Systems · Photonic and Optical Devices
