Lecture11_QM3

Lecture11_QM3 - Quantum Theory Quantum 3 1 Topics q...

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1 Quantum Theory Quantum Theory 3 3
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2 Topics Topics Wave-Particle Duality The Schrödinger Equation Interpretation of Wavefunction Summary
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3 Wave-Particle Duality Wave-Particle Duality In 1905, Einstein interpreted Planck’s quantum as a particle of light, now called a photon , and showed how the photon concept yields a simple explanation of the photoelectric effect Light, therefore, has a dual nature: it sometimes manifests wave properties and sometimes particle properties pc h f c E h λ = = =
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4 Wave-Particle Duality Wave-Particle Duality 1892 – 1987 In 1924, Prince Louis de Broglie proposed that the duality is a general aspect of Nature
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5 Wave-Particle Duality Wave-Particle Duality 1892 – 1987 E f h h p λ = = Louis de Broglie, proposed the following as general laws of Nature: The de Broglie Relations
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6 Wave-Particle Duality Wave-Particle Duality de Broglie showed that Bohr’s quantization condition for angular momentum L n mvr = = h is equivalent to the condition 2 n r π λ = if electrons are “wave-like” entities
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Lecture11_QM3 - Quantum Theory Quantum 3 1 Topics q...

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