Does phantom energy contribute to self sustained traversable wormholes?
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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The general form of a stationary, axially symmetric traversable wormhole is discussed. This is a generalization of the static, spherically symmetric wormholes first considered by Morris and Thorne. It is shown that such a wormhole generically violates the null energy condition at the throat. However, an example is presented in which a class of geodesics falling through it do not encounter any e...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2007
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/66/1/012030