**Authors:** Andrei Lucian Dragoi

This paper proposes an extended (e) zero-energy hypothesis (eZEH) starting from the “classical” speculative zero-energy universe hypothesis (ZEUH) firstly proposed by the mathematical physicist Pascual Jordan who argued that, in principle, since the positive energy of a star's mass and its (negative energy) gravitational field (GF) together may have zero total energy, the energy conservation principle (ECP) wouldn’t prevent a star being created by starting from a quantum transition/fluctuation of the (quantum) vacuum state. ZEUH mainly states that the total amount of energy in our universe is exactly zero: its amount of positive energy (in the form of matter and radiation) is exactly canceled out by its negative energy (in the form of gravity). eZEH “pushes” ZEUH “to its limits” and emphasizes some new possible quantum implications: (1) the existence of negative-energy spin-1 gravitons and their appearance in (evanescent) photon-graviton pairs defined as the main “creators” of the 4D spacetime; (2) a (macrocosmic) black-hole (bh) associated Casimir effect (bhCE) which may inhibit Hawking radiation (explaining why it wasn’t observed yet) and may explain the accelerated expansion of our universe; (3) a quantum strong gravitational constant (strong quantum big G) defined as a function of a Planck-like gravitational constant which measures the quantum angular momentum of the (negative energy) graviton (which is predicted to nullify the positive energy of a photon at Planck scales, solving the vacuum energy density apparent paradox); Keywords: the zero-energy universe hypothesis (ZEUH); vacuum; quantum fluctuation; gravitational field (GF); the energy conservation principle (ECP); the extended (e) zero-energy hypothesis (eZEH); negative-energy spin-1 graviton; (evanescent) photon-graviton pairs; 4D spacetime; black-hole (bh); the black-hole (bh) associated Casimir effect (bhCE), Hawking radiation inhibition; accelerated expansion of our universe; quantum strong gravitational constant (strong quantum big G); vacuum energy density;

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[v1] 2018-08-02 16:00:17

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