Chapter 13 wave motion and sound 3. Matter waves物质波 these waves are associated with electrons protons(质子), and other fundamental particles. The most remarkable property of the matter waves is that wave functions of matter waves are referred to as probability amplitudes of waves. Much of what we discuss in this chapter applies to waves of all kinds. However, for specific examples we shall refer to mechanical waves.Chapter 13 Wave Motion and Sound 3. Matter Waves 物质波 The most remarkable property of the matter waves is that wave functions of matter waves are referred to as probability amplitudes of waves. Much of what we discuss in this chapter applies to waves of all kinds. However, for specific examples we shall refer to mechanical waves. these waves are associated with electrons, protons （ 质 子 ） , and other fundamental particles