Origin of probabilities and their application to the multiverse - INSPIRE

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Origin of probabilities and their application to the multiverse

Andreas Albrecht
(
- UC, Davis
)
,
Daniel Phillips
(
- UC, Davis
)

Dec, 2012

6 pages

Published in:

Phys.Rev.D 90 (2014) 12, 123514

Published: Dec 11, 2014

e-Print:

1212.0953 [gr-qc]

DOI:

10.1103/PhysRevD.90.123514

View in:

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Abstract: (APS)

We argue using simple models that all successful practical uses of probabilities originate in quantum fluctuations in the microscopic physical world around us, often propagated to macroscopic scales. Thus we claim there is no physically verified fully classical theory of probability. We comment on the general implications of this view, and specifically question the application of purely classical probabilities to cosmology in cases where key questions are known to have no quantum answer. We argue that the ideas developed here may offer a way out of the notorious measure problems of eternal inflation.

Note:

7 pages including one table. V3: Final version accepted for publication in PRD. Small changes throughout to improve clarity. Section V is expanded and improved. No change to the conclusions or technical points

fluctuation: quantum
cosmological model
multiverse

References(27)

Figures(0)

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