$$2+1$$ 2 + 1 -dimensional traversable wormholes supported by positive energy
نویسندگان
چکیده
منابع مشابه
Phantom energy traversable wormholes
It has been suggested that a possible candidate for the present accelerated expansion of the Universe is “phantom energy”. The latter possesses an equation of state of the form ω ≡ p/ρ < −1, consequently violating the null energy condition. As this is the fundamental ingredient to sustain traversable wormholes, this cosmic fluid presents us with a natural scenario for the existence of these exo...
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We describe the different possibilities that a simple and apparently quite harmless classical scalar field theory provides to violate the energy conditions. We demonstrate that a nonminimally coupled scalar field with a positive curvature coupling ξ > 0 can easily violate all the standard energy conditions, up to and including the averaged null energy condition (ANEC). Indeed, this violation of...
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SAYAN KAR, NARESH DADHICH and MATT VISSER Department of Physics and Centre for Theoretical Studies, Indian Institute of Technology, Kharagpur 721 302, India Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007, India School of Mathematical and Computing Sciences, Victoria University of Wellington, New Zealand E-mail: [email protected]; nkd@iucaa....
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2015
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-015-3293-0