2013/03/17 by Jiro Matsumoto, Matsumoto, Jiro
Physics and Astronomy · #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #Noncommutative and Quantum Gravity Theories #Quantum Electrodynamics and Casimir Effect #Quantum Physics (quant-ph) #astro-ph.CO #gr-qc #hep-th #quant-ph
paper · pdf · doi:10.48550/arxiv.1303.4067
14 pages, 4 figures. v2: the expression of the energy density revised, figures added, v3; figures and typos are corrected
openalex publication_date 2013/03/17 · arxiv created 2013/12/26 · arxiv updated 2013/12/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is known that the simply evaluated value of the zero point energy of quantum fields is extremely deviated from the observed value of dark energy density. In this paper, we consider whether the Casimir energy, which is the zero point energy brought from boundary conditions, can cause the accelerating expansion of the Universe by using proper renormalization method and introducing the fermions of finite temperature living in 3+n+1 space-time. We show that the zero temperature Casimir energy and the finite temperature corrections can explain the current accelerated expansion of the Universe.