That is the question, if you assume the space-time is discrete then it will be an smallest amount of volume line surface and so on, but how do you know how big this amount is ? for example in usual QM we have that energy is quantizied so the avaliable energy levels are eigenvalues of the Hamiltonian.(adsbygoogle = window.adsbygoogle || []).push({});

Then the question is how do you know what 'allowed' (quantization) volume, area and so on of your theory (of course depending on the metric model quantization will be different), in a mathematical way.

* only volumens that are eigenvalues of a certain operator V are allowed

* only areas (of surface) that are the eigenvalues of a certain operator S are

allowed

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# LQG how do you get the Quantum of Space-time

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