Abstract
Several contemporary interpretations of quantum mechanics use the concept of information as a tool for addressing and explaining the quantum world. In the article, I focus on Zeilinger-Brukner's informational foundations of quantum theory (IFQT). I propose that with a phenomenological approach—which, unlike most of the contemporary interpretations of quantum mechanics, exceeds the mere dichotomy between realism and anti-realism—we can address the epistemological questions re-opened by IFQT and the parts of the interpretation that are recognized as problematic by its critics. After the phenomenological supplementation IFQT can provide both, ontic and epistemic answer to the question "Why quantum?" As we apply Husserl's concept of the world as our common objective ground to the IFQT explanation, we can make a justifiable step away from the solipsism/subjectivism, which is, according to the critics, the main problem of IFQT. Thus, I propose in conclusion, a phenomenological approach to quantum physics can offer a background for the much needed dialog between realists and anti-realists as well as for a comprehensive contemporary interpretation of the quantum world.
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See: French (2020, pp. 205–226).
Bitbol (2020, p. 230).
Zeilinger (2005, p. 743).
Ibid, p. 743.
Zeilinger (2003, p. 317). Following their papers written in English, this sentence should be translated as: “Reality and information are the same.” However, Zeilinger (personal communication), prefers the expression “Wirklichkeit,” thus emphasizing the subjective or inter-subjective character of such reality.
Zeilinger (1999, p. 635). Highlighted by Bilban.
Brukner and Zeilinger (2003, p. 327).
Kofler and Zeilinger (2010, pp. 469–480).
Zeilinger (1999, p. 636).
Ibid, p. 637.
Ibid; Kofler and Zeilinger (2010).
Brukner and Zeilinger (2003, pp. 351–352).
Zeilinger (2003).
Daumer et al (2006, pp. 129–132).
Zeilinger (1999, p. 642).
Timpson (2013, p. 192).
Petersen (1963, p. 12).
Fuchs (2003, p. 430).
Timpson (2010, p. 222).
Ibid, p. 222.
Husserl (1970).
Ibid, p. 119.
Husserl (1998, p. 73).
Ibid, pp. 198–201.
Landgrebe (1940, pp. 41–42).
Ibid, p. 41.
Moran and Cohen (2012, p. 132).
Husserl (1970; Kockelmans, 1994).
Husserl (1970, p. 164).
Hribar (1970, p. 509).
Zeilinger (2005, p. 743).
I retain the expression "reality" as used by Zeilinger and Brukner. Following the phenomenological approach, the expression "world" would be more appropriate, however, I presuppose that the term "reality" as used, though not thoroughly explained, by Zeilinger and Brukner, has a similar, compatible meaning for the authors.
Zeilinger (1999, p. 635). Zeilinger and Brukner see the foundational principle for quantum mechanics as dependent on the character of information. After the phenomenological supplementation, we regard information as intentional information, information about reality. The way we refer to reality by using the information of reality can thus still depend on the character of information (as by Zeilinger and Brukner), while it can also be dependent on the mere relationship between information and reality or on the character of reality itself. Because of the intentional character of the information, these influences cannot be separated (information is always information about reality and reality is always given by information). Compare this to Fuchs' and Peres' statement: "If the world is such that we can never identify a reality independent of our experimental activity, then we must be prepared for that, too." Fuchs & Peres (2000, p. 70).
Brukner and Zeilinger (2003, p. 349).
Kofler and Zeilinger (2010, pp. 470–471).
For an excellent appeal of decoherence within the context of phenomenological approach to quantum to quantum physics, see French (2020, p. 215).
Wheeler (1990).
Zeilinger (1999, p. 642).
Timpson (2010, p. 222).
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The research is part of the project The Contemporality of the Understanding Context and the Expression of Personal and Social Freedom (J7-8283), supported by Slovenian Research Agency.
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Bilban, T. Informational foundations of quantum theory: critical reconsideration from the point of view of a phenomenologist. Cont Philos Rev 54, 581–594 (2021). https://doi.org/10.1007/s11007-021-09552-x
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DOI: https://doi.org/10.1007/s11007-021-09552-x