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Quantum cosmology

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Title: Quantum cosmology  
Author: World Heritage Encyclopedia
Language: English
Subject: Quantum gravity, Jose Acacio de Barros, Loop quantum cosmology, Ignazio Licata, Craig Callender
Collection: Physical Cosmology, Quantum Gravity
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Quantum cosmology

Quantum cosmology is the attempt in theoretical physics to develop a quantum theory of the Universe. This approach attempts to answer open questions of classical cosmology, particularly those related to the first phases of the universe.

The classical cosmology is based on Albert Einstein's General Theory of Relativity (GTR). It describes the evolution of the universe very well, as long as you do not approach the Big Bang. It is the gravitational singularity and the Planck time where relativity theory fails to provide what must be demanded of a final theory of space and time. Therefore, a theory is needed that integrates relativity theory and quantum theory.[1] Such an approach is attempted for instance with the loop quantum gravity, another approach with the string theory.[2]

Contents

  • See also 1
  • References 2
    • Notes 2.1
  • External links 3

See also

References

  • Martin Bojowald: Quantum Cosmology. A Fundamental Description of the Universe. (= Lecture Notes in Physics. Vol. 835). Springer, 2011, ISBN 978-1-4419-8276-6.

Notes

  1. ^ Stephen Hawking wrote 1999: So what the singularity theorems are really telling us, is that the universe had a quantum origin, and that we need a theory of quantum cosmology, if we are to predict the present state of the universe.[2]
  2. ^ Klebanov, Igor & Maldacena, Juan (2009). "Solving Quantum Field Theories via Curved Spacetimes" (PDF).  

External links

  • A Layman's Explanation of Quantum Cosmology
  • Lectures on Quantum Cosmology by J.J. Halliwell


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