It is sufficient to set the cosmological constant to zero or to a small number at an initial time

Authors : Recai ERDEM

Pages : 175-179

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :I point out a simple but usually overlooked fact about the cosmological constant problem: to solve the cosmological constant problem it is sufficient to find a symmetry or mechanism that sets the cosmological constant to zero or to a tiny value at some time in the past, provided that general relativity is the relevant theory of gravity, and the energy-momentum tensor insert ignore into journalissuearticles values(excluding the part of the form of a cosmological constant); is conserved. The relevant symmetry or mechanism need not be applicable today. Any additional cosmological constant term induced by a phase transition in the energy-momentum tensor in this case is compensated by a shift in the cosmological constant term of gravitational origin.
Keywords : Cosmological constant, general relativity, cosmology