dorsal/arxiv
View SchemaQuantum State Disturbance vs. Information Gain: Uncertainty Relations for Quantum Information
| Authors | Christopher A. Fuchs, Asher Peres |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9512023 |
| URL | https://arxiv.org/abs/quant-ph/9512023 |
| DOI | 10.1103/PhysRevA.53.2038 |
Abstract
When an observer wants to identify a quantum state, which is known to be one of a given set of non-orthogonal states, the act of observation causes a disturbance to that state. We investigate the tradeoff between the information gain and that disturbance. This issue has important applications in quantum cryptography. The optimal detection method, for a given tolerated disturbance, is explicitly found in the case of two equiprobable non-orthogonal pure states.
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"abstract": "When an observer wants to identify a quantum state, which is known to be one\nof a given set of non-orthogonal states, the act of observation causes a\ndisturbance to that state. We investigate the tradeoff between the information\ngain and that disturbance. This issue has important applications in quantum\ncryptography. The optimal detection method, for a given tolerated disturbance,\nis explicitly found in the case of two equiprobable non-orthogonal pure states.",
"arxiv_id": "quant-ph/9512023",
"authors": [
"Christopher A. Fuchs",
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"doi": "10.1103/PhysRevA.53.2038",
"title": "Quantum State Disturbance vs. Information Gain: Uncertainty Relations for Quantum Information",
"url": "https://arxiv.org/abs/quant-ph/9512023"
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