2007•Journal of North China Institute of Water Conservancy and Hydroelectric PowerRequires access

The Velocity and the Velocity of Phase and the Velocity of Group for Microscopic Particles

Yang Wu

Abstract

For the wave-particle duality of microscopic particles,the relationship of the velocity and the velocity of phase and the velocity of group for the microscopic particles is analyzed,it is pointed out that the velocity relating to the frequency and wavelength of two De Broglie expressions is not the velocity of group but the velocity of phase.On the contrary,the velocity in the defining expression of momentum is the real speed of particles,which doesn't equal to the velocity of phase but equals to the velocity of group.

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Key concepts: Group velocity, Phase velocity, Thermal velocity, Particle velocity, Matter wave, Physics, Group (periodic table), Phase (matter)