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General Covariance and Background Independence in Quantum Gravity

Bärenz, Manuel (2012) General Covariance and Background Independence in Quantum Gravity. University of Cambridge.

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    Abstract

    The history of general relativity suggests that in absence of experi- mental data, constructing a theory on philosophical first principles can lead to a very useful theory as well as to ground-breaking insights about physical reality. The two related concepts of general covariance and back- ground independence are some of these principles and play a central role in general relativity. A definition for them will be proposed and discussed. Constructing a theory of quantum gravity – the sought-after unifica- tion of general relativity and quantum mechanics – could profit from the same approach. Two popular research areas of quantum gravity, string theory and loop quantum gravity together with spin foams, are being examined whether they comply with these principles.


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    Item Type: Other
    Keywords: general covariance background independence quantum gravity string theory loop quantum gravity spin foam models
    Subjects: Specific Sciences > Physics
    Specific Sciences > Physics > Quantum Mechanics
    Depositing User: Manuel Bärenz
    Date Deposited: 26 Aug 2012 12:33
    Last Modified: 26 Aug 2012 12:33
    Item ID: 9293
    Journal or Publication Title: Part III Mathematics Essay
    Publisher: University of Cambridge
    URI: http://philsci-archive.pitt.edu/id/eprint/9293

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