
Published online:
24 May 2012
Published in print:
19 April 2012
Online ISBN:
9780191739378
Print ISBN:
9780199585205
Contents
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10.1 Quantum-gravity phenomenology 10.1 Quantum-gravity phenomenology
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10.2 Decoherence and the quantum universe 10.2 Decoherence and the quantum universe
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10.2.1 Decoherence in quantum mechanics 10.2.1 Decoherence in quantum mechanics
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10.2.2 Decoherence in quantum cosmology 10.2.2 Decoherence in quantum cosmology
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10.2.3 Decoherence of primordial fluctuations 10.2.3 Decoherence of primordial fluctuations
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10.3 Arrow of time 10.3 Arrow of time
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10.4 Reflections and outlook 10.4 Reflections and outlook
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Chapter
10 10 Phenomenology, decoherence, and the arrow of time
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Pages
329–353
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Published:April 2012
Cite
Kiefer, Claus, '10 Phenomenology, decoherence, and the arrow of time', Quantum Gravity, 3rd edn, International Series of Monographs on Physics (Oxford , 2012; online edn, Oxford Academic, 24 May 2012), https://doi.org/10.1093/acprof:oso/9780199585205.003.0010, accessed 3 May 2025.
Abstract
This final chapter starts with a brief review of quantum-gravity phenomenology. It then focuses on an important conceptual issue – the relevance of quantum gravity for the general interpretation of quantum theory. A central part is devoted to the discussion of the quantum-to-classical transition, with decoherence as its crucial mechanism. It is shown that the quantum states used in cosmology can be interpreted in a sensible way. The chapter also contains a discussion of the arrow of time in the light of quantum cosmology and ends with a brief outlook and reflections.
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