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arxiv: 1405.2743 · v3 · pith:FDRKU5N2new · submitted 2014-05-12 · ✦ hep-th · gr-qc

Reconsideration of the Coleman's Baby Universe

classification ✦ hep-th gr-qc
keywords universebabycolemanconstantcosmologicaluniversesallowbecome
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We reconsider the Coleman's mechanism that solves the Cosmological Constant Problem by the baby universes. We use the Lorentzian path integral and allow each universe has a different effective field theory and a vacuum. By using the probability distribution of coupling constants, it is shown that the cosmological constant of our universe does not necessary become small due to the effects of other universes.

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