عنوان مجله
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Physics of the Dark Universe
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چکیده
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We consider the evolution of traversable wormhole geometries in the inflationary, radiation – and
matter – dominated eras, and dynamic wormholes with a traceless energy–momentum tensor (EMT),
within the recently proposed pole dark energy model. We show that the evolving radiation – and
matter – dominated wormhole space times satisfy the null energy condition (NEC), but possess
negative energy densities at late times, thus violating the weak energy condition (WEC) in this
specific domain. However, we demonstrate with a specific example that the traceless EMT evolving
wormholes, supported by conformally invariant massless fields, in principle, could satisfy the WEC, and
consequently the NEC, at all times and for all values of the radial coordinate. Thus, one may imagine
a scenario in which these geometries originate in the Planckian era through quantum gravitational
processes. Inflation could then provide a natural mechanism for the enlargement of these Planckian
wormholes, where their FLRW background evolution is governed by pole dark energy. For the first
time in the literature, specific dynamical 4-dimensional solutions are presented that satisfy the NEC
and WEC everywhere and everywhen
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