Wormholes practicable in a cosmological background

Wormholes practicable in a cosmological background

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For a Morris-Thorne wormhole in a cosmological background we analize the embedding surfaces and deduce an expression for the proper radial distance taking a conformal factor Ω = 1.Further, given the existence Course a pied - Accessoires - Nutrition of an exotic material (negative energy density), the conditions to have a traversable wormhole are studied taking into account a cosmological background with a time dependent conformal factor Ω.Additionally, Motor Start Capacitor the exoticity condition is calculated together with the energy density as measured by a traveler across the wormhole.