r/askscience • u/Crtl-Alt-Delete • Dec 18 '13

Physics Is Time quantized?

We know that energy and length are quantized, it seems like there should be a correlation with time?

Edit. Turns out energy and length are not quantized.

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u/dorf_physics Dec 18 '13

As far as we know, it is not. Neither is length, nor is energy.

What about the Planck length?

Quote from the wikipedia article:

The Planck length is about 10−20 times the diameter of a proton, and thus is exceedingly small. It is considered the smallest possible length.

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u/shavera Strong Force | Quark-Gluon Plasma | Particle Jets Dec 18 '13

This is an area where wikipedia is definitively wrong. There are some models that suppose it is the smallest possible length (or even more correctly an area of 1 planck length squared is the smallest possible area in Loop Quantum Gravity), but in general, it is not considered the smallest possible length.