plural of high frequency gravitational wave

(physics) The concept applying to all matter and radiation, but most evident in light and particles such as the electron, that properties of waves and of particles are exhibited simultaneously

(physics) a sheet of birefringent material whose thickness is such that the light associated with the larger refractive index is retarded in phase by 90° with respect of that associated with the smaller refractive index; used to convert linearly polarized light into circularly polarized light

(physics) A three-dimensional partial differential equation which determines the evolution of a quantum mechanical wave function

(physics) An approximation to a wave function made by taking a linear combination of simpler functions

(physics) A function of the position and spin of an electron; related to the probability of finding the electron in a specified position

(physics) A function which is a solution of Schrödinger's wave equation; the psi function

(physics) The low-energy, ground state of a metal in which densities of the electron spins and charges follow a regular spatial distribution

(electronics) An electron tube in which high-energy microwaves are produced by transferring energy from electrons

The use of mathematics and a large number of loudspeakers to accurately reproduce a given field of sound.