Abstract
I argue that quantum theory can, and in fact must, be applied to the Universe as a whole. After a general introduction, I discuss two concepts that are essential for my chain of arguments: the universality of quantum theory and the emergence of classical behaviors by decoherence. A further motivation is given by the open problem of quantum gravity. I then present the main ingredients of quantum cosmology and discuss their relevance for the interpretation of quantum theory. I end with some brief epistemological remarks.
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References
Mittelstaedt, P.: Philosophische Probleme der Modernen Physik, 5th edn. Bibliographisches Institut, Mannheim (1976)
Schlosshauer, M.: Decoherence and the Quantum-to-Classical Transition. Springer, Berlin (2007)
Busch, P., Lahti, P.J., Mittelstaedt, P.: The Quantum Theory of Measurement. Springer, Berlin (1991)
Joos, E., et al.: Decoherence and the Appearance of a Classical World in Quantum Theory, 2nd edn. Springer, Berlin (2003). See also www.decoherence.de
Zeh, H.D.: Found. Phys. 1, 69 (1970)
Trost, J., Hornberger, K.: Phys. Rev. Lett. 103, 023202 (2009)
Zeh, H.D.: Quantum discreteness is an illusion. Online available as arXiv:0809.2904v6 [quant-ph]
Zurek, W.H.: Phys. Rev. A 71, 052105 (2005)
Kiefer, C.: Quantum Gravity, 2nd edn. Oxford University Press, Oxford (2007)
Mittelstaedt, P.: Der Zeitbegriff in der Physik, 3rd edn. Bibliographisches Institut, Mannheim (1989)
Maldacena, J.: Scientific American Reports (April), 75 (2007)
Zeh, H.D.: The Physical Basis of the Direction of Time, 5th edn. Springer, Berlin (2007)
Kiefer, C., Zeh, H.D.: Phys. Rev. D 51, 4145 (1995)
Okasha, S.: Philosophy of Science. Oxford University Press, Oxford (2002). Chapter 4
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Kiefer, C. Can Quantum Theory be Applied to the Universe as a Whole?. Found Phys 40, 1410–1418 (2010). https://doi.org/10.1007/s10701-010-9441-3
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DOI: https://doi.org/10.1007/s10701-010-9441-3