Year: 2002
Type: article
Abstract: It is shown that different distinguishability measures impose different orderings on ensembles of N pure quantum states. This is demonstrated using ensembles of equally probable, linearly independent, symmetrical pure states, with the maximum probabilities of correct hypothesis testing and unambiguous state discrimination being the distinguishability measures. This finding implies that there is no absolute scale for comparing the distinguishability of any two ensembles of N quantum states, and that distinguishability comparison is necessarily relative to a particular discrimination strategy.
Source: Physical Review A
Author: Anthony Chefles
Institution: University of Hertfordshire
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2064955592