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Negative Energy Density States for the Dirac Field in Flat Spacetime

Dan N. Vollick
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Abstract

Negative energy densities in the Dirac field produced by state vectors that are the superposition of two single particle electron states are examined. I show that for such states the energy density of the field is not bounded from below and that the quantum inequalities derived for scalar fields are satisfied. I also show that it is not possible to produce negative energy densities in a scalar field using state vectors that are arbitrary superpositions of single particle states.

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Dan N. Vollick. 1998-06-15. Negative Energy Density States for the Dirac Field in Flat Spacetime. https://doi.org/10.1103/physrevd.57.3484

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