Retrieving "Empty Space" from the archives

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1. Quantum Vacuum

   Linked via "empty space"

   The quantum vacuum is the lowest possible energy state of a quantized field, as described by quantum field theory (QFT)/). Contrary to the classical notion of empty space, the quantum vacuum is a dynamic medium exhibiting inherent activity, virtual particle pair production, and measurable physical effects. Its properties are fundamentally linked to the structure of spacetime and the values of the fundamental physical constants.
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