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The Primordial Density Perturbation
Cosmology, Inflation and the Origin of Structure


  • Date Published: June 2009
  • availability: Available
  • format: Hardback
  • isbn: 9780521828499

£ 61.99

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About the Authors
  • The origin and evolution of the primordial perturbation is the key to understanding structure formation in the earliest stages of the Universe. It carries clues to the types of physical phenomena active in that extreme high-density environment. Through its evolution, generating first the observed cosmic microwave background anisotropies and later the distribution of galaxies and dark matter in the Universe, it probes the properties and dynamics of the present Universe. This graduate-level textbook gives a thorough account of theoretical cosmology and perturbations in the early Universe, describing their observational consequences and showing how to relate such observations to primordial physical processes, particularly cosmological inflation. With ambitious observational programmes complementing ever-increasing sophistication in theoretical modelling, cosmological studies will remain at the cutting edge of astrophysical studies for the foreseeable future.

    • Provides a thorough account of theoretical cosmology and perturbations in the early Universe
    • Assumes only undergraduate-level knowledge of physics
    • Describes observational consequences and shows how such observations relate to primordial physical processes
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    Reviews & endorsements

    'I like this book a lot. It is written very clearly and organised so well that it is easy to navigate. Both authors are undoubted experts and they handle the material with confidence as well as displaying deep insights and physical understanding.' Peter Coles, The Observatory

    'The Primordial Density Perturbation is a welcome addition … [the] presentation is lucid and modern. [Lyth and Liddle's] volume warrants a place on the shelves of all researchers in advanced cosmology …' Physics Today

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    Product details

    • Date Published: June 2009
    • format: Hardback
    • isbn: 9780521828499
    • length: 516 pages
    • dimensions: 253 x 180 x 27 mm
    • weight: 1.17kg
    • contains: 9 b/w illus. 135 exercises
    • availability: Available
  • Table of Contents

    1. Overview
    Part I. Relativity:
    2. Special relativity
    3. General relativity
    Part II. The Universe after the First Second:
    4. The unperturbed Universe
    5. The primordial density perturbation
    6. Stochastic properties
    7. Newtonian perturbations
    8. General relativistic perturbations
    9. The matter distribution
    10. Cosmic microwave background anistropy
    11. Boltzmann hierarchy and polarization
    12. Isocurvature and tensor modes
    Part III. Field Theory:
    13. Scalar fields and gravity
    14. Internal symmetry
    15. Quantum field theory
    16. The Standard Model
    17. Supersymmetry
    Part IV. Inflation and the Early Universe:
    18. Slow-roll inflation
    19. More inflation paradigms
    20. Reheating and phase transitions
    21. Baryon number, CDM and dark energy
    22. Generating field perturbations at horizon exit
    23. Generating ζ at horizon exit
    24. Generating ζ and Si after horizon exit
    25. Slow-roll inflation and observation

  • Instructors have used or reviewed this title for the following courses

    • Advanced Topics in Astrophysics
    • Cosmology and Relativity
    • Introduction to Cosmology
  • Authors

    David H. Lyth, Lancaster University
    David H. Lyth is Professor of Particle Astrophysics in the Physics Department at Lancaster University.

    Andrew R. Liddle, University of Sussex
    Andrew R. Liddle is Professor of Astrophysics in the Department of Physics and Astronomy at the University of Sussex.

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