Abstract
We point out and analyze some striking analogies between Kant’s transcendental method in philosophy and Bohr’s approach of the fundamental issues raised by quantum mechanics. We argue in particular that some of the most controversial aspects of Bohr’s views, as well as the philosophical concerns that led him to endorse such views, can naturally be understood along the lines of Kant’s celebrated ‘Copernican’ revolution in epistemology.
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Notes
- 1.
See, e.g., [Holton 1978, p. 162], [Osnaghi 2009, pp. 101–2].
- 2.
[Bunge 1955]. See also the discussion in [Howard 2004] and [Faye 2009].
- 3.
[Hooker 1972], [Honner 1982], [Murdoch 1987], [Chevalley 1991], [Kaiser 1992], [Brock 2003].
- 4.
[Folse 1978, 1985], [Pais 1991].
- 5.
[Held 1995], [Pringe 2007], [Cuffaro 2010], [Kauark-Leite 2012].
- 6.
Niels Bohr, letter to Albert Einstein, 13 April 1927, quoted in [Honner 1982, p. 7].
- 7.
[Hintikka 1991]. See also the discussion in [Allison 2004, Ch. 3].
- 8.
See [Murdoch 1987, Ch. 7]. For a discussion of the analogy between Bohr’s and Kant’s respective notions of phenomenon, see Kaiser [1991].
- 9.
[Friedman 1992], [Bitbo l1998], [Pradelle 2013].
- 10.
Erwin Schrödinger, letter to Niels Bohr, 5 May 1928, and Bohr’s reply, 23 May 1928, both quoted in [Murdoch 1987, p. 101].
- 11.
This point is often overlooked. [Rovelli 1996, p. 1671] remarks for example that ‘the disturbing aspect of Bohr’s view is the inapplicability of quantum theory to macrophysics’, and he understands such a view as implying that ‘the classical world is physically distinct from the microsystems’. See also, e.g., [Zurek 2003], [Weinberg 2005], as well as Hugh Everett’s analysis of Bohr’s position in [Osnaghi 2009].
- 12.
In a manuscript of 1955, Everett calls it ‘repugnant’ [Osnaghi 2009, p. 105].
- 13.
John Wheeler, letter to Alexander Stern, 25 May 1956, quoted in [Osnaghi 2009, p. 118].
- 14.
Léon Rosenfeld, letter to Saul Bergmann, 21 December 1959, quoted in [Osnaghi 2009, p. 117].
- 15.
[Faye 1991], [Held 1994], [Murdoch 1987], [Bitbo l1996a].
- 16.
[Kant 1987, §59, p. 227], [Chevalley 1995], [Pringe 2007].
- 17.
Here is for example a passage from the Como lecture [Bohr 1934, p. 54]: ‘…if in order to make observation possible we permit certain interactions with suitable agencies of measurement, not belonging to the system, an unambiguous definition of the state of the system is naturally no longer possible, and there can be no question of causality in the ordinary sense of the word. The very nature of the quantum theory thus forces us to regard the space-time co-ordination and the claim of causality, the union of which characterizes the classical theories, as complementary but exclusive features of the description, symbolizing the idealization of observation and definition respectively.’
- 18.
Quoted in [Darrigol 1992, p. 276].
- 19.
[Petersen 1985]. See [Murdoch 1987, Ch. 7] for a discussion of the pragmatist features in Bohr’s views on meaning, particularly in so far as his partial endorsement of verificationist criteria is concerned.
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Bitbol, M., Osnaghi, S. (2016). Bohr’s Complementarity and Kant’s Epistemology. In: Darrigol, O., Duplantier, B., Raimond, JM., Rivasseau, V. (eds) Niels Bohr, 1913-2013. Progress in Mathematical Physics, vol 68. Birkhäuser, Cham. https://doi.org/10.1007/978-3-319-14316-3_8
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