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According to QFT there's not really a vacuum anywhere in space, as I understand it?
by jonsen 4y ago
According to QFT there's not really a vacuum anywhere in space, as I understand it?
- GolDDranks 4y agoAccording to QFT, the quantum fields permeate the space everywhere, but the field itself can be in a "vacuum state", which means it has the lowest possible energy. (But unlike in classical physics, the lowest possible energy is not zero.)