What are Quantum Vacuum Fluctuations?
Quantum Vacuum Fluctuations are essentially a momentary, spontaneous organization of the otherwise random, isotropic energy of space; essentially variation in the density of ZPE. The terms Vacuum Fluctuations and ZPE are frequently used interchangeably with some understandable confusion given that QVac fluctuations are essentially just an organized form of ZPE. As the subject matter becomes better defined, the nomenclature and usage should hopefully become more consistant. It is probably best to think of Quantum Vacuum fluctuations as a naturally coherent manifestation of ZPE arising from the otherwise random flux of the ubiquitous Zero-Point Field.