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Zeitschrift für Naturforschung A, 2008 We give an introduction into quantum cosmology with emphasis on its conceptual parts. After a general motivation we review the formalism of canonical quantum gravity on which discussions of quantum cosmology are usually based.
Kiefer, Claus, Sandhoefer, Barbara
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Noncommutative Quantum Cosmology [PDF]
General Relativity and Gravitation, 2004 We consider noncommutative quantum cosmology in the case of the low-energy string effective theory. Exacts solutions are found and compared with the commutative case.The Noncommutative quantum cosmology is considered in the case of the low-energy string ...
A. Connes +12 more
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Living Rev Relativ, 2008 Quantum gravity is expected to be necessary in order to understand situations where classical general relativity breaks down. In particular in cosmology one has to deal with initial singularities, i.e. the fact that the backward evolution of a classical space-time inevitably comes to an end after a finite amount of proper time.
Bojowald M.
europepmc +14 more sources
Quantum Effects In Cosmology [PDF]
Classical and Quantum Gravity, 1993 Contents: Introduction. The Present State of the Universe. What Can We Expect From a Complete Cosmological Theory? An Overview of Quantum Effects in Cosmology. Parametric (Superadiabatic) Amplification of Classical Waves.
Belinsky V A +38 more
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Quantum Cosmology and Tachyons [PDF]
Fortschritte der Physik, 2008 We discuss the relevance of the classical and quantum rolling tachyons inflation in the frame of the standard, p-adic and adelic minisuperspace quantum cosmology.
Ambjorn +26 more
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QUANTUM COSMOLOGIES AND THE “BEGINNING”
Zygon: Journal of Religion and Science, 1991 Abstract. The cosmology proposed by Stephen Hawking has been understood as support for an atheistic stance, due mainly to its view of the nature of time in combination with the absence of explicit boundary conditions. Against such a view, this article argues that one might develop a theistic understanding of the Universe in the context of Hawking's ...
Willem B. Drees
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Quantum phantom cosmology [PDF]
Physical Review D, 2006 We apply the formalism of quantum cosmology to models containing a phantom field. Three models are discussed explicitly: a toy model, a model with an exponential phantom potential, and a model with phantom field accompanied by a negative cosmological ...
A. A. Starobinsky +11 more
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Quantum Cosmology Lectures [PDF]
, 1995 Quantum cosmology is the quantum theory of the entire universe. Although strange at first sight, it is appropriate because (1) our world appears to be fundamentally quantum, (2) the classical description of gravity breaks down at singularities it would ...
Page, Don N.
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Time in Quantum Cosmology [PDF]
Universe, 2022 Time in quantum gravity is not a well-defined notion despite its central role in the very definition of dynamics. Using the formalism of quantum geometrodynamics, we briefly review the problem and illustrate it with two proposed solutions. Our main application is quantum cosmology—the application of quantum gravity to the Universe as a whole.
Claus Kiefer, Patrick Peter
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