2017/08/15 by Mauricio Cataldo, Fabian Orellana, Fabián Orellana · 33 citations
Medicine · Physics and Astronomy · #Computer science #Cosmology and Gravitation Theories #Effects of Radiation Exposure #Imaging phantom #Medical Imaging Techniques and Applications #Optics #Physics #Theoretical physics #Wormhole #gr-qc
paper · pdf · doi:10.1103/physrevd.96.064022
published in Physical review. D/Physical review. D. 96(6) (American Physical Society) · To be published in Physical Review D; 9 pages; 8 figures
arxiv created 2017/08/15 · openalex publication_date 2017/09/14 · arxiv updated 2017/10/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this paper we derive new static phantom traversable wormholes by assuming a shape function with a quadratic dependence on the radial coordinate r. We mainly focus our study on wormholes sustained by exotic matter with positive energy density (as seen by any static observer) and a variable equation of state pr/\ensuremathρ<\ensuremath-1, dubbed ``phantom matter.'' Among phantom wormhole spacetimes extending to infinity, we show that a quadratic shape function allows us to construct static spacetimes of finite size, composed of a phantom wormhole connected to an anisotropic spherically symmetric distribution of dark energy. The wormhole part of the full spacetime does not fulfill the dominant energy condition, while the dark energy part does.