PIRSA:07090072 Conference

DOI10.48660/07090072

Conference/School: Many Worlds at 50 - 2007

Schack, R. (2007). Subjective Probability and Many Worlds . Perimeter Institute. https://pirsa.org/07090072

Schack, Ruediger. Subjective Probability and Many Worlds . Perimeter Institute, Sep. 22, 2007, https://pirsa.org/07090072 

@misc{ pirsa_PIRSA:07090072,
  doi = {10.48660/07090072},
  url = {https://pirsa.org/07090072},
  author = {Schack, Ruediger},
  keywords = {},
  language = {en},
  title = {Subjective Probability and Many Worlds },
  publisher = {Perimeter Institute},
  year = {2007},
  month = {sep},
  note = {PIRSA:07090072 see, \url{https://pirsa.org}}
}

Abstract

Probability is often regarded as a problem for the many-worlds interpretation: if all branches of the splitting wavefunction are equally real, what sense does it make to say that the branches have different probabilities? In the decision-theoretic approach due to Deutsch and Wallace, probabilities acquire a meaning through the preferences of a rational agent. This talk reviews the decision-theoretic approach to probability in classical physics and quantum mechanics and shows that its application to the many-world interpretation creates a new difficulty for the latter.

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