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arXiv · 1302.3174

States of Low Energy in Homogeneous and Inhomogeneous, Expanding Spacetimes

Kolja Them·Marcos Brum
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Abstract

We construct states on the algebra of the Klein-Gordon field that minimize the energy density in homogeneous and in inhomogeneous spacetimes, both with compact Cauchy hypersurfaces. The energy density is measured by geodesic observers and smeared over a spacelike slab of spacetime, entirely containing a Cauchy hypersurface and extended in time. We further show that these states are Hadamard states. The present construction generalizes the construction of States of Low Energy in Robertson-Walker spacetimes presented by Olbermann (2007).

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Kolja Them, Marcos Brum. 2013-02-13. States of Low Energy in Homogeneous and Inhomogeneous, Expanding Spacetimes. https://doi.org/10.1088/0264-9381/30/23/235035

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