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Intrinsic energy of Lemaître-Tolman-Bondi models and cosmological implications
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Intrinsic energy of Lemaître-Tolman-Bondi models and cosmological implications
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| Lapiedra Civera, Ramón; Morales Lladosa, Juan Antonio | |||
| Aquest document és un/a article, creat/da en: 2014 | |||
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| Recently, some Lemaître-Tolman-Bondi metrics have been considered as models alternative to the dark energy within the Friedmann-Lemaître-Robertson-Walker universes. The vanishing of the intrinsic energy of these metrics is examined since such a vanishing, in the present case and in general, could be interpreted as a necessary condition to consider the possibility of the quantum creation of a metric. More specifically, this vanishing is examined in the particular case where the Lemaître-Tolman-Bondi metrics behave asymptotically like a Friedmann-Lemaître-Robertson-Walker universe. Finally, we deal with a particular model ruled out after being confronted with cosmic observations. In a minimal agreement with this negative result, leaving aside an unstable case, the value of the intrinsic energy of this particular model does not vanish and becomes in fact minus infinite. | |||
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