Abstract
References to energy of the universe have focussed upon the matter contribution, whereas the conservation laws must include a gravitational contribution as well. The conservation laws as applied to FRW cosmologies suggest a zero total energy irrespective of the spatial curvature when the value of the cosmological constant is taken to be zero. This result provides a useful constraint on models of the early universe and lends support to currently studied theories of the universe arising as a quantum fluctuation of the vacuum.
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Cooperstock, F.I., Israelit, M. The energy of the Universe. Found Phys 25, 631–635 (1995). https://doi.org/10.1007/BF02059009
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DOI: https://doi.org/10.1007/BF02059009