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Does cosmological expansion affect local physics?

Giulini, Domenico (2013) Does cosmological expansion affect local physics? [Preprint]

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Abstract

In this contribution I wish to address the question whether, and how, the global cosmological expansion
influences local physics, like particle orbits and black hole geometries. Regarding the former I argue that a
pseudo Newtonian picture can be quite accurate if ``expansion'' is taken to be an attribute of the inertial structure rather than of ``space'' in some
substantivalist sense. This contradicts the
often-heard suggestion to imagine cosmological
expansion as that of ``space itself''. Regarding
isolated objects in full General Relativity, like black
holes, I emphasise the need for proper geometric
characterisations in order to meaningfully compare them
in different spacetimes, like static and expanding ones.
Examples are discussed in some detail to clearly map out
the problems.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Giulini, Domenicogiulini@itp.uni-hannover.de
Additional Information: Written and extended version of a talk delivered at the conference on "Philosophical Aspects of Modern Cosmology" held in Granada, 22-23 September 2011.
Keywords: Cosmology, General Relativity, Black Holes
Subjects: Specific Sciences > Physics > Cosmology
Specific Sciences > Physics > Relativity Theory
General Issues > Theory/Observation
Depositing User: Domenico Giulini
Date Deposited: 04 Oct 2013 13:28
Last Modified: 04 Oct 2013 13:28
Item ID: 10033
Subjects: Specific Sciences > Physics > Cosmology
Specific Sciences > Physics > Relativity Theory
General Issues > Theory/Observation
Date: 3 October 2013
URI: http://philsci-archive.pitt.edu/id/eprint/10033

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