dorsal/arxiv
View SchemaQuantum key distribution without alternative measurements
| Authors | Adan Cabello |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9911025 |
| URL | https://arxiv.org/abs/quant-ph/9911025 |
| DOI | 10.1103/PhysRevA.61.052312 |
| Journal | Phys. Rev. A 61 (2000) 052312 |
Abstract
Entanglement swapping between Einstein-Podolsky-Rosen (EPR) pairs can be used to generate the same sequence of random bits in two remote places. A quantum key distribution protocol based on this idea is described. The scheme exhibits the following features. (a) It does not require that Alice and Bob choose between alternative measurements, therefore improving the rate of generated bits by transmitted qubit. (b) It allows Alice and Bob to generate a key of arbitrary length using a single quantum system (three EPR pairs), instead of a long sequence of them. (c) Detecting Eve requires the comparison of fewer bits. (d) Entanglement is an essential ingredient. The scheme assumes reliable measurements of the Bell operator.
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"abstract": "Entanglement swapping between Einstein-Podolsky-Rosen (EPR) pairs can be used\nto generate the same sequence of random bits in two remote places. A quantum\nkey distribution protocol based on this idea is described. The scheme exhibits\nthe following features. (a) It does not require that Alice and Bob choose\nbetween alternative measurements, therefore improving the rate of generated\nbits by transmitted qubit. (b) It allows Alice and Bob to generate a key of\narbitrary length using a single quantum system (three EPR pairs), instead of a\nlong sequence of them. (c) Detecting Eve requires the comparison of fewer bits.\n(d) Entanglement is an essential ingredient. The scheme assumes reliable\nmeasurements of the Bell operator.",
"arxiv_id": "quant-ph/9911025",
"authors": [
"Adan Cabello"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.61.052312",
"journal_ref": "Phys. Rev. A 61 (2000) 052312",
"title": "Quantum key distribution without alternative measurements",
"url": "https://arxiv.org/abs/quant-ph/9911025"
},
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