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arXiv · 1401.3578

Conceptual Problems in Quantum Gravity and Quantum Cosmology

Claus Kiefer
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Abstract

The search for a consistent and empirically established quantum theory of gravity is among the biggest open problems of fundamental physics. The obstacles are of formal and of conceptual nature. Here, I address the main conceptual problems, discuss their present status and outline further directions of research. For this purpose, the main current approaches to quantum gravity are briefly reviewed and compared.

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Claus Kiefer. 2014-01-15. Conceptual Problems in Quantum Gravity and Quantum Cosmology. https://doi.org/10.1155/2013%2F509316

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