dorsal/arxiv
View SchemaFaithful qubit distribution assisted by one additional qubit against collective noise
| Authors | T. Yamamoto, J. Shimamura, S. K. Ozdemir, M. Koashi, N. Imoto |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0407046 |
| URL | https://arxiv.org/abs/quant-ph/0407046 |
| DOI | 10.1103/PhysRevLett.95.040503 |
| Journal | Phys. Rev. Lett. 95, 040503 (2005) |
Abstract
We propose a distribution scheme of polarization states of a single photon over collective-noise channel. By adding one extra photon with a fixed polarization, we can protect the state against collective noise via a parity-check measurement and post-selection. While the scheme succeeds only probabilistically, it is simpler and more flexible than the schemes utilizing decoherence-free subspace. An application to BB84 protocol through collective noise channel, which is robust to the Trojan horse attack, is also given.
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"abstract": "We propose a distribution scheme of polarization states of a single photon\nover collective-noise channel. By adding one extra photon with a fixed\npolarization, we can protect the state against collective noise via a\nparity-check measurement and post-selection. While the scheme succeeds only\nprobabilistically, it is simpler and more flexible than the schemes utilizing\ndecoherence-free subspace. An application to BB84 protocol through collective\nnoise channel, which is robust to the Trojan horse attack, is also given.",
"arxiv_id": "quant-ph/0407046",
"authors": [
"T. Yamamoto",
"J. Shimamura",
"S. K. Ozdemir",
"M. Koashi",
"N. Imoto"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.95.040503",
"journal_ref": "Phys. Rev. Lett. 95, 040503 (2005)",
"title": "Faithful qubit distribution assisted by one additional qubit against collective noise",
"url": "https://arxiv.org/abs/quant-ph/0407046"
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