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Inorganic Chemistry By Dr. Khalil K. Abid
Inorganic Chemistry By Dr. Khalil K. Abid

... • The description of nature is essentially probabilistic, with the probability of an event related to the square of the amplitude of the wave function related to it. • It is not possible to know the value of all the properties of the system at the same time; those properties that are not known with ...
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Teleportation - American University in Cairo
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... The electron affinity χ of p-type GaAs is large (about 4eV). It represents the difference in energy between the vacuum level and the conducting band prevents electrons from leaving the crystal surface. adding layers of cesium to the crystal will reduce the electron affinity to values close to zero. ...
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Density of States Derivation
Density of States Derivation

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Chapter 27

Black-body Radiation & the Quantum Hypothesis
Black-body Radiation & the Quantum Hypothesis

... in any arbitrary amounts, but only in discrete “quantum” amounts. The energy of a “quantum” depends on frequency as ...
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The Learnability of Quantum States

Chapter 3 Wave Properties of Particles Overview
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... “mix” two of these quantum objects, such as two grains of light. We say they are entangled. We can then separate them as much as we want, they remain attached, and the properties of each stays dependent of the other. If an experimenter interacts with behave on o one of these objects, the other objec ...
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Early Quantum Theory and Models of the Atom

... electron can jump down to a lower state and give off a photon in the process • This is the origin of the emission spectra of excited gases • The vertical arrows represent the transitions or jumps that correspond to the various observed spectral lines ...
Brane World - University of Southampton
Brane World - University of Southampton

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... (a) Illustration of minority carrier diffusion in a surface-illuminated p-type semiconductor. The absorption is assumed to occur at the surface (how to make it real?). (b) Plots of the excess minority carrier concentration as a function of distance into the bar with increasing time. As the excess c ...
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Unit 4 Chap. 4 Arrangement of Electrons in Atoms

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Part 7 – Quantum physics Useful weblinks Fermilab Inquiring Minds
Part 7 – Quantum physics Useful weblinks Fermilab Inquiring Minds

... This YouTube video explains the standard model of particles. It gives a thorough explanation of the forces of nature and the particles from the standard model. http://www.youtube.com/watch?v=K6i-qE8AigE&feature=related How Carbon-14 Dating Works This website gives a layman's description of how carbo ...
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Quantum electrodynamics



In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.
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