- #1
touqra
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I read that quantum field theory predicts that the vacuum should have some sort of energy and momentum.
I could this be when the concept of energy is not absolute? All we measure in the lab is the difference in energy.
In addition, I also read that the cosmological constant in Einstein equation can be interpreted as the energy density of the vacuum. What are the current research and theories on these?
I could this be when the concept of energy is not absolute? All we measure in the lab is the difference in energy.
In addition, I also read that the cosmological constant in Einstein equation can be interpreted as the energy density of the vacuum. What are the current research and theories on these?