| Download | - View final version: Do qubits dream of entangled sheep? quantum measurement without classical output (PDF, 1.5 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1088/1367-2630/ad48ad |
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| Author | Search for: Lupu-Gladstein, Noah; Search for: Brodutch, Aharon; Search for: Ferretti, Hugo; Search for: Tham, Weng-Kian; Search for: Ou Teen Pang, Arthur; Search for: Bonsma-Fisher, Kent1ORCID identifier: https://orcid.org/0000-0002-5581-8892; Search for: Steinberg, Aephraim M |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Funder | Search for: Foundational Questions Institute; Search for: John E. Fetzer Memorial Trust; Search for: Natural Sciences and Engineering Research Council of Canada |
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| Format | Text, Article |
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| Subject | quantum measurement; quantum foundations; quantum networks |
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| Abstract | Quantum mechanics is usually formulated with an implicit assumption that agents who can observe and interact with the world are external to it and have a classical memory. However, there is no accepted way to define the quantum–classical cut and no a priori reason to rule out fully quantum agents with coherent quantum memories. In this work, we introduce an entirely quantum notion of measurement, called a sensation, to account for quantum agents that experience the world through quantum sensors. Sensations eschew probabilities and instead describe a deterministic flow of quantum information. We quantify the information gain and disturbance of a sensation using concepts from quantum information theory and find that sensations always disturb at least as much as they inform. Viewing measurements as sensations could lead to a new understanding of quantum theory in general and to new results in the context of quantum networks. |
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| Publication date | 2024-05-21 |
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| Publisher | IOP Publishing |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | dd3892b4-63b7-45d9-9bc7-8a7126c3a171 |
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| Record created | 2024-09-16 |
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| Record modified | 2024-09-16 |
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