Energy conditions outside a dielectric ball

2004/07/01 by Noah Graham, Ken D. Olum, Delia Schwartz-Perlov
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Quantum Electrodynamics and Casimir Effect #gr-qc #hep-th

paper · pdf · doi:10.1103/physrevd.70.105019

published as Phys.Rev. D70 (2004) 105019 · 12 pages, RevTex4

arxiv created 2004/07/01 · openalex publication_date 2004/11/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show analytically that the vacuum electromagnetic stress-energy tensor outside a ball with constant dielectric constant and permeability always obeys the weak, null, dominant, and strong energy conditions. There are still no known examples in quantum field theory in which the averaged null energy condition in flat spacetime is violated.

Citations

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