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PHYS201 - Wave Mechanics - Macquarie University

PHYS201 Wave MechanicsSemester 1 2009J D C5C357 Ext 8913 Semester 1 2009 PHYS201 Wave Mechanics1 / 86 Quantum Mechanics and Wave Mechanics IQuantum Mechanics arose out of the need to provide explanations for a range ofphysical phenomena that could not be accounted for by classical physics:Black body spectrumSpectra of the elementsphotoelectric effectSpecific heat of solids ..Through the work of Planck, Einstein and others, the idea arose that electromagneticand other forms of energy could be exchanged only in definite quantities (quanta)And through the work of De Broglie the idea arose that matter could exhibit wave was Einstein who proposed that waves (light) could behave like particles (photons).Heisenberg proposed the first successfulquantum theory, but in the terms of themathematics of matrices matrix 1 2009 PHYS201 Wave Mechanics2 / 86 Quantum Mechanics and Wave Mechanics IISchr odinger came up with an equation for the waves predicted by de Broglie, and thatwas the start of wave odinger also showed that his work and that of Heisenberg s were it was Heisenberg, and Born, who first realized that quantum Mechanics was atheory of that Einstein would never accept, even though he helped discover it!

PHYS201 Wave Mechanics Semester 1 2009 J D Cresser jcresser@physics.mq.edu.au Rm C5C357 Ext 8913 Semester 1 2009 PHYS201 Wave Mechanics 1 / 86

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