If the laws of physics weren't time/space translation symmetric, would energy/momentum still be meaningful quantities?
Answers
HEY SAKNA HERE
A deeper meaning of the Noether theorem is that time and energy relate to each other. They are Fourier conjugates, two sides of the same thing. If time is uniform, energy conserves. This is just a very limited specific case of the relation. If time is not uniform, energy does not conserve, but the relation remains. You can introduce "a potential energy of the field" (even if there is no actual field) to make energy conserve in a non-uniform time. For example, you could introduce "a potential energy of the expanding universe" to see that the energy loss during the expansion is time reversible.
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PLZ MARK AS BRAINLIEST
Explanation:
In physics, a symmetry of a physical system is a physical or mathematical feature of the system (observed or intrinsic) that is preserved or remains unchanged under some transformation. ... These two concepts, Lie and finite groups, arethe foundation for the fundamental theories of modern physics.