Gryb, Sean and Thebault, Karim P Y (2013) Time Remains. [Preprint]

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Abstract

How should one understand the implications of general covariance for the role of time in classical theories of gravity? On one popular view, the essential lesson is that change is relational in a strong sense, such that all it is for a physical degree of freedom to change is for it to vary with regard to a second physical degree of freedom. At a quantum level, this view of change as relative variation leads to a fundamentally timeless formalism for quantum gravity, with the universe eternally frozen in an energy eigenstate. Here we will start from at different interpretation of the classical theory, and, in doing so, show how one may avoid this acute ‘problem of time’ in quantum gravity. Under our view, duration is still regarded as relative, but temporal succession is taken to be absolute. This approach to the classical theory of gravity forms the basis for an alternative relational quantization methodology, such that it is possible to conceive of a genuinely dynamical theory of quantum gravity within which time, in a substantive sense, remains.

This paper accompanies a more technical paper <http://arxiv.org/abs/1303.7139>, with which it may be read in parallel.

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Item Type:	Preprint
Creators:	Creators Email ORCID Gryb, Sean s.gryb@hef.ru.nl Thebault, Karim P Y karim.thebault@gmail.com
Keywords:	Problem of Time, Quantum Gravity, Symmetry
Subjects:	Specific Sciences > Physics > Classical Physics Specific Sciences > Physics > Quantum Mechanics Specific Sciences > Physics > Relativity Theory Specific Sciences > Physics > Symmetries/Invariances
Depositing User:	Dr Karim Thebault
Date Deposited:	12 Dec 2013 20:29
Last Modified:	08 Aug 2014 15:25
Item ID:	10132
Subjects:	Specific Sciences > Physics > Classical Physics Specific Sciences > Physics > Quantum Mechanics Specific Sciences > Physics > Relativity Theory Specific Sciences > Physics > Symmetries/Invariances
Date:	12 December 2013
URI:	https://philsci-archive.pitt.edu/id/eprint/10132

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• Time Remains. (deposited 12 Dec 2013 20:29) [Currently Displayed]
  • Time Remains. (deposited 08 Aug 2014 15:25)

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