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Added by Arxiv Bot | Added: 2026-03-02 18:01 | Views: 0 | Source: arXiv Dataset IDs (Model)

Fundamental bounds on quantum measurements with a mixed apparatus

Authors	S. Bose, V. Vedral
Categories	quant-ph
ArXiv ID	quant-ph/0004016
URL	https://arxiv.org/abs/quant-ph/0004016

Abstract

We consider the apparatus in a quantum measurement process to be in a mixed state. We propose a simple upper bound on the probability of correctly distinguishing any number of mixed states. We use this to derive fundamental bounds on the efficiency of a measurement in terms of the temperature of the apparatus.

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    "authors": [
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    "title": "Fundamental bounds on quantum measurements with a mixed apparatus",
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