Book contents
- Frontmatter
- Contents
- Preface
- 1 The concept of chance
- 2 The classical picture: What is the world made of?
- 3 Ways the world might be
- 4 Possibilities of thought
- 5 Chance in phase space
- 6 Possibilist theories of chance
- 7 Actualist theories of chance
- 8 Anti-realist theories of chance
- 9 Chance in quantum physics
- 10 Chance in branching worlds
- 11 Time and evidence
- 12 Debunking chance
- References
- Index
9 - Chance in quantum physics
Published online by Cambridge University Press: 05 June 2012
- Frontmatter
- Contents
- Preface
- 1 The concept of chance
- 2 The classical picture: What is the world made of?
- 3 Ways the world might be
- 4 Possibilities of thought
- 5 Chance in phase space
- 6 Possibilist theories of chance
- 7 Actualist theories of chance
- 8 Anti-realist theories of chance
- 9 Chance in quantum physics
- 10 Chance in branching worlds
- 11 Time and evidence
- 12 Debunking chance
- References
- Index
Summary
In trying to develop a theory of chance, I have so far drawn largely on a metaphysical picture inspired by classical physics, and have used statistical mechanics as my central example of chance arising in physical theories. It has proven difficult to develop an adequate theory of chance. But perhaps things will look different if we turn to quantum mechanics. The theory of quantum mechanics is extremely well confirmed. It is doubtful whether it is strictly true in its current form, due to the well-known conflict between quantum mechanics and the general theory of relativity, but it is an outstandingly good example of a successful physical theory, and it represents a stark break from earlier models of the physical world. Perhaps by tapping into these resources, we can develop an adequate metaphysics of chance.
The quantum mechanical world
It is widely believed that quantum mechanics is starkly opposed to classical physics, because quantum mechanics claims that the world is governed by fundamentally indeterministic laws. As it happens, this common belief oversimplifies somewhat. Quantum mechanics is a theory that is formulated in relatively mathematical terms, quite removed from concepts of directly observable physical entities. Consequently, there is a great deal of room for interpretation of the meaning of the mathematics. Indeed, there are at least three interpretations of quantum mechanics which are serious candidates for giving an adequate account of how the mathematics relates to reality.
- Type
- Chapter
- Information
- A Philosophical Guide to ChancePhysical Probability, pp. 146 - 161Publisher: Cambridge University PressPrint publication year: 2012