Towards quantum gravity | ||
| Journal of Holography Applications in Physics | ||
| دوره 3، شماره 2، شهریور 2023، صفحه 53-58 اصل مقاله (241.95 K) | ||
| نوع مقاله: Review article | ||
| شناسه دیجیتال (DOI): 10.22128/jhap.2023.687.1053 | ||
| نویسنده | ||
| Sergey I. Kruglov* | ||
| Department of Physics, University of Toronto, 60 St. Georges St., Toronto, ON M5S 1A7, Canada. Canadian Quantum Research Center, 204-3002 32 Ave Vernon, BC V1T 2L7, Canada | ||
| چکیده | ||
| We analyze different approaches to quantum gravity. It is stressed that nonperturbative methods to quantise gravity and the usage of diffeomorphism-invariant variables are very important. We pay attention on the Wheeler--DeWitt equation in the framework of canonical quantum gravity. The Wheeler--DeWitt equation is presented in the first order formalism with the hope that this form can solve some problems such as singularities and the ordering. Also, there is a problem of defining the time. | ||
| کلیدواژهها | ||
| quantum gravity؛ nonperturbative methods؛ diffeomorphism-invariant variables؛ Wheeler--DeWitt equation؛ first-order formalism | ||
| اصل مقاله | ||
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Article PDF | ||
| مراجع | ||
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