Quantum Cosmology
Cambridge University Press (Verlag)
9781009516808 (ISBN)
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'Quantum Cosmology' offers a guided introduction to the quantum aspects of the cosmos. Starting with an overview of early universe cosmology, the book builds up to advanced topics such as the Wheeler–DeWitt equation, gravitational path integrals, and the no-boundary proposal for the wave function of the universe. Readers will explore tunneling processes via Coleman–DeLuccia instantons, the quantum origin of primordial fluctuations, the thermodynamics of horizons, and basic notions of string cosmology. Concepts such as wormholes and semi-classical geometry are introduced with clarity and physical motivation. The book assumes some familiarity with general relativity and quantum mechanics, but little prior knowledge of cosmology. It includes a wide range of exercises, with solutions provided. Written in a pedagogical style, it bridges the gap between undergraduate courses and the research level in this frontier area of theoretical physics.
Jean-Luc Lehners studied physics and mathematics at Imperial College London and at the University of Cambridge. He obtained his Ph.D. in 2005 at Imperial College for his research in string theory. Following postdoctoral positions at the University of Cambridge, Princeton University, and the Perimeter Institute, he established the Theoretical Cosmology group at the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) in Potsdam in 2010, which he ran until 2024. Dr. Lehners won two prestigious ERC Grants. His research focuses on the early universe, with a particular emphasis on quantum effects in cosmology.
Conventions and notation; 1. Modeling the early universe; 2. Blowing up the universe: inflation; 3. Observing perturbative quantum gravity: fluctuations; 4. Quantizing gravity: canonical approach; 5. Quantizing gravity: path integral approach; 6. Linking gravity, quantum theory, and thermodynamics; 7. Creating space and time: the no-boundary proposal; 8. Interpreting the wave function; 9. Transitioning to different spacetimes; 10. Going deeper yet: stringy cosmology; A. Constants of nature and cosmological quantities; B. Picard–Lefschetz theory and saddle point approximation; C. Useful functions; D. Exercise solutions; E. Guide to the bibliography; References; Index.
| Erscheint lt. Verlag | 28.2.2026 |
|---|---|
| Zusatzinfo | Worked examples or Exercises |
| Verlagsort | Cambridge |
| Sprache | englisch |
| Themenwelt | Naturwissenschaften ► Physik / Astronomie ► Astronomie / Astrophysik |
| Naturwissenschaften ► Physik / Astronomie ► Quantenphysik | |
| ISBN-13 | 9781009516808 / 9781009516808 |
| Zustand | Neuware |
| Informationen gemäß Produktsicherheitsverordnung (GPSR) | |
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