"The Cosmological Constant"
by
Sean M. Carroll
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Abstract
1
Introduction
1.1
Truth and beauty
1.2
Introducing the cosmological constant
1.3
Vacuum energy
2
Cosmology with a Cosmological Constant
2.1
Cosmological parameters
2.2
Model universes and their fates
2.3
Surveying the universe
2.4
Structure formation
3
Observational Tests
3.1
Type Ia supernovae
3.2
Cosmic microwave background
3.3
Matter density
3.4
Gravitational lensing
3.5
Other tests
4
Physics Issues
4.1
Supersymmetry
4.2
String theory
4.3
The anthropic principle
4.4
Miscellaneous adjustment mechanisms
4.5
Other sources of dark energy
5
Conclusions: The Preposterous Universe
6
Acknowledgments
References
Figures