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Lecture 01 - EEE 434/591Quantum Mechanics L1:1 David K...

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EEE 434 Quantum Mechanics L1:1 EEE 434/591—Quantum Mechanics David K. Ferry Regents’ Professor Arizona State University Vienna State Opera, Austria
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EEE 434 Quantum Mechanics L1:2 ISBN: 07750307250 EEE 434 Quantum Mechanics The course will be graded upon 3 tests, 1 final, and homework. The three tests and home work count equally and make up ¾ of your grade. The final quarter is the final. My office is ERC 187A, email: [email protected] Office hours are: 9:00-11:00 TTh All assignments, pdf files for the lectures, homework and test solutions, and various links will be available on blackboard . My home page: http://ferry.faculty.asu.edu
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EEE 434 Quantum Mechanics L1:3 Who is the Professor? Came to ASU in 1983 (prior localizations at Texas Tech, ONR, and Colorado State) Have held a variety of positions here; now have promoted myself to just Regents’ Professor (limited to a few % of faculty) Have a successful research and service career, which involves travel —this means I will miss several of the lectures in this class in order to deal with the research and service side. http://www.asu.edu/aad/manuals/acd/acd202.html Office hours are officially 9:00-10:30 MWF, 9:00-11:00 TTh. Unofficially, any time you find me in my office (ERC 559, affectionately known as “ the cave” ) will work, unless I am busy at the moment.
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EEE 434 Quantum Mechanics L1:4 We have more than 300 years of history in understanding classical mechanics! The field is even older, but it was Newton’s publication of his mathematical theories and his theory of motion that brought together the field into a single entity. This has led us to a general understanding of motion: Solid things like baseballs, rocks, and electrons are particles . Other things, like light and heat, are waves . Particles and waves are different states of matter, and they are different . Particles have position and momentum . Waves have frequency and wavelength . Until the end of the 19 th century, everyone understood this, and was comfortable.
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EEE 434 Quantum Mechanics L1:5 Particles satisfied Newton’s equations of motion. Waves satisfied the new Maxwell’s equations which clarified electromagnetic waves, and light was clearly in this class. Newton had clearly shown that white light would be separated into different colors with a prism, and could be recombined into white light with a second prism. Moreover, waves like light showed interference phenomena. Particles clearly did not have this behavior!
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EEE 434 Quantum Mechanics L1:6 The idea of interference is most commonly observed in dropping two stones into water.
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EEE 434 Quantum Mechanics L1:7 L S 1 S 2 screen (a) L S 1 S 2 screen (b) Waves clearly demonstrated interference phenomena—waves from two different sources (or two slits) would exhibit both constructive and destructive interference (where the amplitudes would add or cancel, respectively).
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EEE 434 Quantum Mechanics L1:8 Even the American physicist Albert Michelson (Nobel prize in 1907 for measuring the speed of light) said in 1899: One person even suggested closing the patent office as everything had been discovered.
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