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Mass-Energy-Momentum: Only there because of Spacetime?

Lehmkuhl, Dennis (2010) Mass-Energy-Momentum: Only there because of Spacetime? [Preprint]

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    I describe how relativistic field theory generalises the paradigm property of material systems, the possession of mass, to the requirement that they have a mass-energy-momentum density tensor associated with them. I argue that the latter does not represent an intrinsic property of matter. For it will become evident that its definition depends on the metric field in a variety of ways. Accordingly, since the metric field represents the geometry of spacetime itself, the properties of mass, stress, energy and momentum should not be seen as intrinsic properties of matter, but as relational properties that material systems have only in virtue of their relation to spacetime structure.

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    Item Type: Preprint
    Keywords: energy-momentum tensor, mass, mass-energy-momentum, energy, metric, spacetime structure, general relativity, matter
    Subjects: Specific Sciences > Physics > Classical Physics
    General Issues > Structure of Theories
    Specific Sciences > Physics > Cosmology
    Specific Sciences > Physics > Relativity Theory
    Specific Sciences > Physics > Fields and Particles
    Specific Sciences > Physics
    Depositing User: Dr Dennis Lehmkuhl
    Date Deposited: 30 Jan 2010
    Last Modified: 07 Oct 2010 11:19
    Item ID: 5137

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