On Formalisms and Interpretations

Veronika Baumann; Stefan Wolf

doi:10.22331/q-2018-10-15-99

On Formalisms and Interpretations

Veronika Baumann^1,2 and Stefan Wolf¹

¹Faculty of Informatics, Università della Svizzera italiana, Via G. Buffi 13, CH-6900 Lugano, Switzerland
²Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria

Published:	2018-10-15, volume 2, page 99
Eprint:	arXiv:1710.07212v6
Scirate:	https://scirate.com/arxiv/1710.07212v6
Doi:	https://doi.org/10.22331/q-2018-10-15-99
Citation:	Quantum 2, 99 (2018).

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.

► BibTeX data

@article{Baumann2018formalisms,
  doi = {10.22331/q-2018-10-15-99},
  url = {https://doi.org/10.22331/q-2018-10-15-99},
  title = {On {F}ormalisms and {I}nterpretations},
  author = {Baumann, Veronika and Wolf, Stefan},
  journal = {{Quantum}},
  issn = {2521-327X},
  publisher = {{Verein zur F{\"{o}}rderung des Open Access Publizierens in den Quantenwissenschaften}},
  volume = {2},
  pages = {99},
  month = oct,
  year = {2018}
}

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Cited by

[1] Igor Salom, "To the rescue of Copenhagen interpretation", arXiv:1809.01746 (2018).

[2] Arne Hansen and Stefan Wolf, "The Measurement Problem Is the "Measurement" Problem", arXiv:1810.04573 (2018).

[3] Nuriya Nurgalieva and Lidia del Rio, "Inadequacy of modal logic in quantum settings", arXiv:1804.01106 (2018).

The above citations are from SAO/NASA ADS (last updated 2019-01-23 05:17:05). The list may be incomplete as not all publishers provide suitable and complete citation data.

On Crossref's cited-by service no data on citing works was found (last attempt 2019-01-23 05:17:03).

This Paper is published in Quantum under the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Copyright remains with the original copyright holders such as the authors or their institutions.

On Formalisms and Interpretations

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