The role of entanglement in quantum measurement and information processing

P Busch

doi:10.1023/A:1025462220957

The role of entanglement in quantum measurement and information processing

P Busch

Mathematics

Research output: Contribution to journal › Article › peer-review

Abstract

The significance of the quantum feature of entanglement between physical systems is investigated in the context of quantum measurements. It is shown that, while there are measurement couplings that leave the object and probe systems non-entangled, no information transfer from object to probe can take place unless there is there is at least some intermittent period where the two systems are entangled.

Original language	English
Pages (from-to)	937-941
Number of pages	5
Journal	International Journal of Theoretical Physics
Volume	42
DOIs	https://doi.org/10.1023/A:1025462220957
Publication status	Published - 2003

Keywords

Mathematical Physics

Access to Document

10.1023/A:1025462220957

http://arxiv.org/abs/quant-ph/0209090

Cite this

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title = "The role of entanglement in quantum measurement and information processing",

abstract = "The significance of the quantum feature of entanglement between physical systems is investigated in the context of quantum measurements. It is shown that, while there are measurement couplings that leave the object and probe systems non-entangled, no information transfer from object to probe can take place unless there is there is at least some intermittent period where the two systems are entangled.",

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AB - The significance of the quantum feature of entanglement between physical systems is investigated in the context of quantum measurements. It is shown that, while there are measurement couplings that leave the object and probe systems non-entangled, no information transfer from object to probe can take place unless there is there is at least some intermittent period where the two systems are entangled.

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