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

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

The above citations are from SAO/NASA ADS (last updated 2019-01-16 16:46:00). 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 2019-01-16 16:45:59).

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On Formalisms and Interpretations

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