- #1
wangyi
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Is it really conserved or not?
In one hand, from the Heisenberg principle, \delta E \delta t ~h, then energy is not strictly conserved.
While in the other hand, from the Feynman diagrams we are drawing, the four-vector of momentum is conserved in every vertex, so energy is conserved everywhere.
I think some of the examples raised in the post before can not well illustrate the broken of energy conservation rule in quantum level, because they can be explained as the energy-0(or nearly 0) state creats a pair of particles, one carries positive energy and the other carries negative energy.
regards
wangyi
In one hand, from the Heisenberg principle, \delta E \delta t ~h, then energy is not strictly conserved.
While in the other hand, from the Feynman diagrams we are drawing, the four-vector of momentum is conserved in every vertex, so energy is conserved everywhere.
I think some of the examples raised in the post before can not well illustrate the broken of energy conservation rule in quantum level, because they can be explained as the energy-0(or nearly 0) state creats a pair of particles, one carries positive energy and the other carries negative energy.
regards
wangyi