All quantum mixtures are proper

Leonardo Castellani

doi:10.1142/S0219749923500193

All quantum mixtures are proper

Leonardo Castellani

Department of Science and Technological Innovation

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

Abstract

It is argued that proper and improper quantum mixed states have no observable differences, and hence should not be distinguished. This has implications for subjective approaches to quantum mechanics, and invalidates one of the main motivations for relational interpretations.

Original language	English
Article number	2350019
Journal	International Journal of Quantum Information
Volume	21
Issue number	4
DOIs	https://doi.org/10.1142/S0219749923500193
Publication status	Published - 1 Jun 2023

Keywords

Quantum mechanics
density matrix
measurement problem
quantum mixtures

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10.1142/S0219749923500193

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title = "All quantum mixtures are proper",

abstract = "It is argued that proper and improper quantum mixed states have no observable differences, and hence should not be distinguished. This has implications for subjective approaches to quantum mechanics, and invalidates one of the main motivations for relational interpretations.",

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All quantum mixtures are proper

Abstract

Keywords

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