Quantum mechanics of identical particles
Leibniz’s principium identitatis indiscernibilium excludes the existence of two different objects possessing all properties identical. Although perfectly acceptable for macroscopic systems, it becomes questionable in quantum mechanics, where the concept of identical particles is quite natural and ha...
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| Format: | Article |
| Language: | deu |
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Copernicus Center Press
2022-11-01
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| Series: | Zagadnienia Filozoficzne w Nauce |
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| Online Access: | https://zfn.edu.pl/index.php/zfn/article/view/591 |
| _version_ | 1811232999713275904 |
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| author | Marek Kuś |
| author_facet | Marek Kuś |
| author_sort | Marek Kuś |
| collection | DOAJ |
| description | Leibniz’s principium identitatis indiscernibilium excludes the existence of two different objects possessing all properties identical. Although perfectly acceptable for macroscopic systems, it becomes questionable in quantum mechanics, where the concept of identical particles is quite natural and has measurable consequences. On the other hand, Leibniz’s principle seems to be indispensable when we want to individuate an item and ascribe to it particular property (e.g. value of the projection of spin on a chosen axis). We may thus abandon the principle on the quantum level, claiming it falsity here, or (better) try to find other ways of individuation of objects, possibly by adopting appropriately the very concept of it. All these problems, and many other connected with identity and indiscernibility of quantum objects, are thoroughly discussed in the book of Tomasz Bigaj, unique in the world literature due to its comprehensiveness. |
| first_indexed | 2024-04-12T11:14:04Z |
| format | Article |
| id | doaj.art-e06926b5fe614e78b4139c3895b8ab2e |
| institution | Directory Open Access Journal |
| issn | 0867-8286 2451-0602 |
| language | deu |
| last_indexed | 2024-04-12T11:14:04Z |
| publishDate | 2022-11-01 |
| publisher | Copernicus Center Press |
| record_format | Article |
| series | Zagadnienia Filozoficzne w Nauce |
| spelling | doaj.art-e06926b5fe614e78b4139c3895b8ab2e2022-12-22T03:35:33ZdeuCopernicus Center PressZagadnienia Filozoficzne w Nauce0867-82862451-06022022-11-0172169178539Quantum mechanics of identical particlesMarek Kuś0https://orcid.org/0000-0002-2767-3251Center for Theoretical Physics, Polish Academy of SciencesLeibniz’s principium identitatis indiscernibilium excludes the existence of two different objects possessing all properties identical. Although perfectly acceptable for macroscopic systems, it becomes questionable in quantum mechanics, where the concept of identical particles is quite natural and has measurable consequences. On the other hand, Leibniz’s principle seems to be indispensable when we want to individuate an item and ascribe to it particular property (e.g. value of the projection of spin on a chosen axis). We may thus abandon the principle on the quantum level, claiming it falsity here, or (better) try to find other ways of individuation of objects, possibly by adopting appropriately the very concept of it. All these problems, and many other connected with identity and indiscernibility of quantum objects, are thoroughly discussed in the book of Tomasz Bigaj, unique in the world literature due to its comprehensiveness.https://zfn.edu.pl/index.php/zfn/article/view/591quantum identical particleindiscernibilityleibniz principle |
| spellingShingle | Marek Kuś Quantum mechanics of identical particles Zagadnienia Filozoficzne w Nauce quantum identical particle indiscernibility leibniz principle |
| title | Quantum mechanics of identical particles |
| title_full | Quantum mechanics of identical particles |
| title_fullStr | Quantum mechanics of identical particles |
| title_full_unstemmed | Quantum mechanics of identical particles |
| title_short | Quantum mechanics of identical particles |
| title_sort | quantum mechanics of identical particles |
| topic | quantum identical particle indiscernibility leibniz principle |
| url | https://zfn.edu.pl/index.php/zfn/article/view/591 |
| work_keys_str_mv | AT marekkus quantummechanicsofidenticalparticles |