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January 1, 1989Reviews of Modern Physics7,418 citationsOpen Access

The cosmological constant problem

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SWSteven Weinberg

Key Points

  • The central aim is to explore the significant discrepancy between observed and predicted values of the cosmological constant.
  • Brief historical review of the cosmological constant problem
  • Description of five proposed solutions to the discrepancy
  • The observed cosmological constant is considerably smaller than theoretical predictions
  • Variability in proposed solutions highlights the complexity of the problem
  • Different theoretical frameworks are examined to address this discrepancy

Abstract

Astronomical observations indicate that the cosmological constant is many orders of magnitude smaller than estimated in modern theories of elementary particles. After a brief review of the history of this problem, five different approaches to its solution are described.

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Cite This Study

Steven Weinberg (1989) studied this question.

synapsesocial.com/papers/69d8feddb305d713c2bed94ehttps://doi.org/10.1103/revmodphys.61.1
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