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Просмотр по теме "Wormholes"

Просмотр по теме "Wormholes"

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  • Exact wormhole solutions with nonminimal kinetic coupling 
    Неизвестный автор (2018)
    Copyright © 2018 by the Editors.All rights reserved. We consider static spherically symmetric solutions in the scalar-tensor theory of gravity with a scalar field possessing the nonminimal kinetic coupling to the curvature. ...
  • Giant wormholes in ghost-free bigravity theory 
    Sushkov S.; Volkov M. (2015)
    We study Lorentzian wormholes in the ghost-free bigravity theory described by two metrics, g and f. Wormholes can exist if only the null energy condition is violated, which happens naturally in the bigravity theory since ...
  • Magnetized dusty black holes and wormholes 
    Bronnikov K.A.; Kashargin P.E.; Sushkov S.V. (2021)
    We consider the generalized Tolman solution of general relativity, describing the evolution of a spherical dust cloud in the presence of an external electric or magnetic field. The solution contains three arbitrary functions ...
  • Semiclassical wormholes with a smooth throat 
    Khusnutdinov N. (2004)
    We propose a procedure for calculating heat kernel coefficients and use it to derive the expression for any heat kernel coefficient B i for an arbitrary profile of the throat. We give an explicit form of these coefficients ...
  • Weyl metrics and wormholes 
    Gibbons G.; Volkov M. (2017)
    © 2017 IOP Publishing Ltd and Sissa Medialab srl. We study solutions obtained via applying dualities and complexifications to the vacuum Weyl metrics generated by massive rods and by point masses. Rescaling them and extending ...
  • Wormhole geometries in Eddington-Inspired Born-Infeld gravity 
    Harko T.; Lobo F.; Mak M.; Sushkov S. (2015)
    © 2015 World Scientific Publishing Company. Eddington-inspired Born-Infeld (EiBI) gravity is a recently proposed modified theory of gravity, based on the classic work of Eddington and Born-Infeld nonlinear electrodynamics. ...

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