On Formalisms and Interpretations
One of the reasons for the heated debates around the interpretations of quantum theory is a simple confusion between the notions of formalism $\textit{versus}$ interpretation. In this note, we make a clear distinction between them and show that there are actually two $\textit{inequivalent}$ quantum...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
2018-10-01
|
| Series: | Quantum |
| Online Access: | https://quantum-journal.org/papers/q-2018-10-15-99/pdf/ |
| _version_ | 1811266922039214080 |
|---|---|
| author | Veronika Baumann Stefan Wolf |
| author_facet | Veronika Baumann Stefan Wolf |
| author_sort | Veronika Baumann |
| collection | DOAJ |
| description | One of the reasons for the heated debates around the interpretations of quantum theory is a simple confusion between the notions of formalism $\textit{versus}$ interpretation. In this note, we make a clear distinction between them and show that there are actually two $\textit{inequivalent}$ quantum formalisms, namely the relative-state formalism and the standard formalism with the Born and measurement-update rules. We further propose a different probability rule for the relative-state formalism and discuss how Wigner's-friend-type experiments could show the inequivalence with the standard formalism. The feasibility in principle of such experiments, however, remains an open question. |
| first_indexed | 2024-04-12T20:53:07Z |
| format | Article |
| id | doaj.art-f6781b941e4244f88c2aacb9355e99b3 |
| institution | Directory Open Access Journal |
| issn | 2521-327X |
| language | English |
| last_indexed | 2024-04-12T20:53:07Z |
| publishDate | 2018-10-01 |
| publisher | Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften |
| record_format | Article |
| series | Quantum |
| spelling | doaj.art-f6781b941e4244f88c2aacb9355e99b32022-12-22T03:17:05ZengVerein zur Förderung des Open Access Publizierens in den QuantenwissenschaftenQuantum2521-327X2018-10-0129910.22331/q-2018-10-15-9910.22331/q-2018-10-15-99On Formalisms and InterpretationsVeronika BaumannStefan WolfOne of the reasons for the heated debates around the interpretations of quantum theory is a simple confusion between the notions of formalism $\textit{versus}$ interpretation. In this note, we make a clear distinction between them and show that there are actually two $\textit{inequivalent}$ quantum formalisms, namely the relative-state formalism and the standard formalism with the Born and measurement-update rules. We further propose a different probability rule for the relative-state formalism and discuss how Wigner's-friend-type experiments could show the inequivalence with the standard formalism. The feasibility in principle of such experiments, however, remains an open question.https://quantum-journal.org/papers/q-2018-10-15-99/pdf/ |
| spellingShingle | Veronika Baumann Stefan Wolf On Formalisms and Interpretations Quantum |
| title | On Formalisms and Interpretations |
| title_full | On Formalisms and Interpretations |
| title_fullStr | On Formalisms and Interpretations |
| title_full_unstemmed | On Formalisms and Interpretations |
| title_short | On Formalisms and Interpretations |
| title_sort | on formalisms and interpretations |
| url | https://quantum-journal.org/papers/q-2018-10-15-99/pdf/ |
| work_keys_str_mv | AT veronikabaumann onformalismsandinterpretations AT stefanwolf onformalismsandinterpretations |