The spontaneous and continuous fluctuation of quantum states in a vacuum, especially the small fluctuation in energy level that is associated with virtual particles as described by quantum field theory.
"vacuum fluctuation." YourDictionary, n.d. Web. 19 April 2019. <https://www.yourdictionary.com/vacuum-fluctuation>.
vacuum fluctuation. (n.d.). Retrieved April 19th, 2019, from https://www.yourdictionary.com/vacuum-fluctuation
A spontaneous, short-lived fluctuation in the energy level of a vacuum, as described by quantum field theory. Although these variations are violations of the law of conservation of energy, they are tolerated in quantum mechanics by virtue of the uncertainty principle. Such fluctuations are associated with virtual particles.