dorsal/arxiv
View SchemaHigh-Fidelity Teleportation of Independent Qubits
| Authors | Dik Bouwmeester, Jian-Wei Pan, Harald Weinfurter, Anton Zeilinger |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9910043 |
| URL | https://arxiv.org/abs/quant-ph/9910043 |
| DOI | 10.1080/09500340008244042 |
Abstract
Quantum teleportation is one of the essential primitives of quantum communication. We suggest that any quantum teleportation scheme can be characterized by its efficiency, i.e. how often it succeeds to teleport, its fidelity, i.e. how well the input state is reproduced at the output, and by its insensitivity to cross talk, i.e. how well it rejects an input state that is not intended to teleport. We discuss these criteria for the two teleportation experiments of independent qubits which have been performed thus far. In the first experiment (Nature {\bf 390},575 (1997)) where the qubit states were various different polarization states of photons, the fidelity of teleportation was as high as 0.80 $\pm$ 0.05 thus clearly surpassing the limit of 2/3 which can, in principle, be obtained by a direct measurement on the qubit and classical communication. This high fidelity is confirmed in our second experiment (Phys. Rev. Lett. {\bf 80}, 3891 (1998)), demonstrating entanglement swapping, that is, realizing the teleportation of a qubit which itself is still entangled to another one. This experiment is the only one up to date that demonstrates the teleportation of a genuine unknown quantum state.
{
"annotation_id": "48a63707-f911-4363-81ae-882b34dbe7bd",
"date_created": "2026-03-02T18:02:48.608000Z",
"date_modified": "2026-03-02T18:02:48.608000Z",
"file_hash": "1a7bb3c045f10ebed93e3715db74583c955b47d85413f99a8eebcd7e3296a30f",
"private": false,
"record": {
"abstract": "Quantum teleportation is one of the essential primitives of quantum\ncommunication. We suggest that any quantum teleportation scheme can be\ncharacterized by its efficiency, i.e. how often it succeeds to teleport, its\nfidelity, i.e. how well the input state is reproduced at the output, and by its\ninsensitivity to cross talk, i.e. how well it rejects an input state that is\nnot intended to teleport. We discuss these criteria for the two teleportation\nexperiments of independent qubits which have been performed thus far. In the\nfirst experiment (Nature {\\bf 390},575 (1997)) where the qubit states were\nvarious different polarization states of photons, the fidelity of teleportation\nwas as high as 0.80 $\\pm$ 0.05 thus clearly surpassing the limit of 2/3 which\ncan, in principle, be obtained by a direct measurement on the qubit and\nclassical communication. This high fidelity is confirmed in our second\nexperiment (Phys. Rev. Lett. {\\bf 80}, 3891 (1998)), demonstrating entanglement\nswapping, that is, realizing the teleportation of a qubit which itself is still\nentangled to another one. This experiment is the only one up to date that\ndemonstrates the teleportation of a genuine unknown quantum state.",
"arxiv_id": "quant-ph/9910043",
"authors": [
"Dik Bouwmeester",
"Jian-Wei Pan",
"Harald Weinfurter",
"Anton Zeilinger"
],
"categories": [
"quant-ph"
],
"doi": "10.1080/09500340008244042",
"title": "High-Fidelity Teleportation of Independent Qubits",
"url": "https://arxiv.org/abs/quant-ph/9910043"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "10865e57-2242-4f26-a3f5-7176abcc6bcb",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}