





  Quantum Gravitation: The Feynman Path Integral ApproachThe book covers the theory of Quantum Gravitation from the point of view of Feynman path integrals. These provide a manifestly covariant approach in which fundamental quantum aspects of the theory such as radiative corrections and the renormalization group can be systematically and consistently addressed. The path integral method is suitable for...   Quantum Cosmology and Baby UniversesQuantum gravity is notoriously a subject where problems vastly outnumber results. This is no surprise at short distances, on the order of the Planck length, where most of us expect quantum fluctuations in the metric to cause spacetime itself to lose its meaning and gravity to be subsumed (along with the other socalled fundamental interactions)... 



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