Wheeler–DeWitt equation | Wikipedia audio article
Channel: wikipedia tts
Date: 25/12/2018

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Wheeler%E2%80%93DeWitt_equation


00:00:37 1 Quantum gravity
00:01:43 2 Motivation and background
00:09:57 3 Derivation from path integral
00:12:24 4 Mathematical formalism
00:13:41 4.1 Hamiltonian constraint
00:14:38 4.2 Momentum constraint
00:16:56 5 See also
00:18:51 6 References



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SUMMARY
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The Wheeler–DeWitt equation is a field equation.  It is part of a theory that attempts to combine mathematically the ideas of quantum mechanics and general relativity, a step towards a theory of quantum gravity. In this approach, time plays a role different from what it does in non-relativistic quantum mechanics, leading to the so-called 'problem of time'. More specifically, the equation describes the quantum version of the Hamiltonian constraint using metric variables. Its commutation relations with the diffeomorphism constraints generate the Bergman-Komar "group" (which is the diffeomorphism group on-shell).