Objectivity in Quantum Measurement
The objectivity is a basic requirement for the measurements in the classical world, namely, different observers must reach a consensus on their measurement results, so that they believe that the object exists “objectively” since whoever measures it obtains the same result. We find that this simple r...
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| Veröffentlicht in: | Foundations of physics 2018-06, Vol.48 (6), p.654-667 |
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| container_title | Foundations of physics |
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| creator | Li, Sheng-Wen Cai, C. Y. Liu, X. F. Sun, C. P. |
| description | The objectivity is a basic requirement for the measurements in the classical world, namely, different observers must reach a consensus on their measurement results, so that they believe that the object exists “objectively” since whoever measures it obtains the same result. We find that this simple requirement of objectivity indeed imposes an important constraint upon quantum measurements, i.e., if two or more observers could reach a consensus on their quantum measurement results, their measurement basis must be orthogonal vector sets. This naturally explains why quantum measurements are based on orthogonal vector basis, which is proposed as one of the axioms in textbooks of quantum mechanics. The role of the macroscopicality of the observers in an objective measurement is discussed, which supports the belief that macroscopicality is a characteristic of classicality. |
| doi_str_mv | 10.1007/s10701-018-0169-9 |
| format | Article |
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The role of the macroscopicality of the observers in an objective measurement is discussed, which supports the belief that macroscopicality is a characteristic of classicality.</description><subject>Axioms</subject><subject>Classical and Quantum Gravitation</subject><subject>Classical Mechanics</subject><subject>History and Philosophical Foundations of Physics</subject><subject>Objectivity</subject><subject>Observers</subject><subject>Philosophy of Science</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum mechanics</subject><subject>Quantum Physics</subject><subject>Quantum theory</subject><subject>Relativity Theory</subject><subject>Statistical Physics and Dynamical Systems</subject><subject>Textbooks</subject><issn>0015-9018</issn><issn>1572-9516</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LxDAQhoMoWFd_gLei5-hM2nwdZfELVhZBzyFNU2mx7Zq0wv57s1Tw5GEYhnmfd5iXkEuEGwSQtxFBAlJAlUpoqo9IhlwyqjmKY5IBIKc6rU_JWYwdAGgpyoxcbavOu6n9bqd93g7562yHae7zF2_jHHzvh-mcnDT2M_qL374i7w_3b-snutk-Pq_vNtQVKCYqPaKyWmtXN9JhJRumOCpX1VK42lkhCi8qq8qmRMsqj2lAyZlWTBfIVbEi14vvLoxfs4-T6cY5DOmkYVAKwYXQRVLhonJhjDH4xuxC29uwNwjmEIVZojDpV3OIwujEsIWJSTt8-PDn_D_0A5-fX3M</recordid><startdate>20180601</startdate><enddate>20180601</enddate><creator>Li, Sheng-Wen</creator><creator>Cai, C. 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| subjects | Axioms Classical and Quantum Gravitation Classical Mechanics History and Philosophical Foundations of Physics Objectivity Observers Philosophy of Science Physics Physics and Astronomy Quantum mechanics Quantum Physics Quantum theory Relativity Theory Statistical Physics and Dynamical Systems Textbooks |
| title | Objectivity in Quantum Measurement |
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