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The Cosmological Constant.

Sean M Carroll1

  • 1Theoretical Physics and Astrophysics Physics Department, California Institute of Technology, 452-48 1200, E. California Blvd., Pasadena, CA 91125 USA ; Enrico Fermi Institute and Department of Physics, University of Chicago, 5640, S. Ellis Ave., Chicago, IL 60637 USA.

Living Reviews in Relativity
|February 10, 2017
PubMed
Summary
This summary is machine-generated.

This review covers the physics and cosmology of the cosmological constant. It examines recent developments, observational constraints, and the physics of vacuum energy.

Keywords:
cosmological constantcosmologyvacuum energy

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Area of Science:

  • Cosmology
  • Theoretical Physics

Background:

  • The cosmological constant represents a fundamental aspect of modern cosmology.
  • Understanding its nature is crucial for explaining the accelerated expansion of the universe.

Purpose of the Study:

  • To provide a pedagogical overview of cosmology with a cosmological constant.
  • To review recent developments in the field.
  • To discuss observational constraints and theoretical implications.

Main Methods:

  • Review of existing literature and recent research.
  • Pedagogical explanation of cosmological models.
  • Analysis of observational data and constraints.

Main Results:

  • Recent developments in cosmological models incorporating the cosmological constant.
  • Summary of current observational constraints on the cosmological constant's magnitude.
  • Overview of the physics related to vacuum energy.

Conclusions:

  • The cosmological constant remains a key component in cosmological models.
  • Ongoing research continues to refine our understanding of its properties and implications.
  • Observational data provides crucial tests for theoretical models.