dispersion law मीनिंग इन हिंदी

Also phonon dispersion law is required to be linear and isotropic too.
The method of the pumping keeps the system electro-neutral and the dispersion laws of electrons and holes are assumed to be parabolic and isotropic.
In the case of zero external potential, the dispersion law of interacting Bose Einstein-condensed particles is given by so-called Bogoliubov spectrum ( for \ T = 0 ):