Short answer: Quantum teleportation moves a quantum state between two photons using entanglement and a measurement, and several experiments have done it on photonic chips. Published work reports teleportation on a reconfigurable photonic chip in 2014, chip-to-chip teleportation in silicon with multi-photon entanglement, and a 2025 time-bin teleportation over optical fibre between circuits on a chip in a star-topology network. All are laboratory demonstrations.
Why teleport on a chip
A 2014 arXiv paper says teleportation has important applications at the heart of quantum technology, including quantum relays, quantum repeaters and linear optics quantum computing. It adds that photonic implementations have mostly aimed at long-distance teleportation, and that large linear optical networks will likely need an integrated architecture to scale.
First teleportation on a chip, 2014
The 2014 paper reports what the authors call the first demonstration of teleportation in which entanglement preparation, Bell-state analysis and quantum state tomography are all performed on a reconfigurable integrated photonic chip. They show a new element-wise characterisation method is critical to mitigate component errors, and expect it to matter more as integrated circuits grow.
Chip-to-chip in silicon
A Nature Physics paper notes that integrated optics is a versatile platform for processing and transceiving with photons, but that earlier experiments struggled to make multi-photon sources and multi-qubit operators of high enough quality in one integrated system, so fully chip-based multi-qubit tasks remained a challenge. The authors report chip-to-chip quantum teleportation and genuine multipartite entanglement, described as core functions of quantum technologies, on silicon-photonic circuits.
Teleportation over fibre, 2025
A 2025 Light: Science and Applications paper says teleportation is a crucial function in quantum networks and that quantum photonic circuits could greatly simplify it, but extending the chip-to-chip distance needs more work on chip design and system implementation. The authors demonstrate time-bin-based chip-to-chip teleportation over optical fibres in a star-topology network. Three quantum photonic circuits on a single chip serve different roles: heralded single-photon generation at the user node, entangled-pair generation and Bell-state measurement at the relay node, and projective measurement of the teleported photons at the central node. They optimise the unbalanced Mach-Zehnder interferometers used for time-bin encoding to reduce insertion losses and suppress noise photons generated on the chip, and use an active feedback system, with details in the paper.
Limits
These are small demonstrations with a handful of photons. The papers report their own fidelities and distances, and none shows a working quantum repeater or relay.
How the three experiments differ
The 2014 work puts all stages of one teleportation experiment on one reconfigurable chip. The silicon chip-to-chip work moves the state between two circuits and adds multi-photon entanglement. The 2025 work uses time-bin encoding, which suits transmission through optical fibre, and places the user, relay and central nodes of a small star network on one chip. They also differ in how they handle noise: the 2014 authors rely on characterising component errors, while the 2025 authors reduce insertion loss and on-chip noise photons in the interferometers. Each paper reports its own metrics, so none of them ranks the others.
FAQ
What does teleportation move?
A quantum state, using shared entanglement and a measurement, not matter or energy.
What was first shown in 2014?
Entanglement preparation, Bell-state analysis and tomography all on one reconfigurable photonic chip, according to the authors.
What changed with the 2025 work?
Time-bin teleportation over optical fibres between circuits in a star-topology network.
Why use silicon photonics?
It offers a compact integrated platform, though the earlier papers note multi-photon sources and operators were hard to integrate.
Does it give a working quantum network?
No. These are chip-level experiments.
All field notes