New posts in Vacuum

Why is the action of lowering operator on the ground state of a harmonic oscillator to give a 0 wave function?

Does anything guarantee that a field theory will have a lower bound on energy, so that a vacuum exists?

Vacuum collapse -- why do strong metals implode but glass doesn't?

Has the speed of light ever been measured in vacuum?

Is the energy density of vacuum uniform in the whole universe?

If atoms are mostly vacuum, why are things so rigid around us?

Strong empirical falsification of quantum mechanics based on vacuum energy density

Are wave equations equivalent to Maxwell's equations in free space?

Is the term "quantum fluctuation" an aide to understanding?

Why does the vacuum even have permeability and permittivity?