PPT-Quantum Model of the Atom

The Atom is like a Hotel not a solar system Copy the diagram on the board if you have not done so Electrons do not circle a nucleus willynilly They have assigned positions that only extra energy can cause them to jump into another position ex photoelectric effect . . deformed. . commutators. . with. . macroscopic. . harmonic. . oscillators. Francesco . Marin. HUMOR. H. eisenberg . . U. ncertainty . M. easured with . O. pto. -mechanical . R. esonators. Chris. Monroe. University of Maryland. Department of Physics. National Institute of. Standards and Technology. Putting Weirdness to Use. atom-sized . transistors. 2040 . molecular-sized . transistors. (around 400 BCE). Democritus thought matter could be divided into. . smaller and smaller pieces until a . single indivisible . particle is reached. . He named this particle the . atom. He proposed that atoms are of different sizes, in constant motion, and separated by empty spaces.. Dieter Jaksch. Outline. Lecture 1: Introduction. What defines a quantum simulator? Quantum simulator criteria. Strongly correlated quantum systems.. Lecture 2: Optical lattices. Bose-Einstein condensation, adiabatic loading of an optical lattice. Advanced Chemistry. Ms. Grobsky. Shortcomings of the Bohr Model. Bohr’s model was too simple. Worked . well with only hydrogen because H only has one . electron. C. ould . only approximate spectra of other elements with more than one . Fang Song. IQC, University of Waterloo. -- “Quantum-Friendly” Reductions. 2. How do . quantum . attacks change classical cryptography?. Crypto-systems based on the hardness of factoring and discrete-log are . model. Dr. . Mahender. Singh. Associate Professor in Physics. PGGC – 11 Chandigarh. Vector model of an atom. The total angular momentum of an atom result from the combination of the orbital and spin angular . From . fundamental tests to quantum simulations. J. i. ří Minář. Centre for Quantum Technologies. National University of Singapore. ICFP. 2012. . . . Kolymv. Dung Nguyen. Chicago 19. th. January. Content. Motivation . Quantum bit (qubit) vs Classical bit (bit). Quantum Computation . Quantum Communication. Conclusion. Motivation. The end of Moore’s law scaling in silicon (because of quantum effects of particle at scale smaller than 7nm).. ’. t understood it.. ”. --Niels Bohr. . The Quantum Information Revolution. . Paul Kwiat. DARPA. Kwiat’s. Quantum. Clan (2012). Graduate Students:. . Rebecca Holmes. . Aditya. Sharma. Singh. Associate Professor in Physics. PGGC – 11 Chandigarh. Vector model of an atom. The total angular momentum of an atom result from the combination of the orbital and spin angular . momenta. of its electrons. Angular momentum is a vector quantity, so we can represent the total angular momentum by means of a vector J obtained by the addition of orbital angular momentum L and spin angular momentum S vectors. This leads to the vector atom model. . The Complete Modern Atom. An atom is:. mostly empty space. . nucleus has . most of . mass. of an atom . Atom is divisible. Protons (+1 charge). Neutrons (no charge). Electrons (-1 charge). nucleus contains protons & neutrons. Rutherford proposed that most of the mass of the atom was concentrated. . at the atom’s center. . Rutherford’s Model of the Atom. Rutherford’s experiment suggested that an atom’s positive charge is concentrated in the center of the atom . Known as the “Laughing Philosopher”. “Nothing exists except atoms and empty space; everything else is opinion.”. Created term “. atomos. ” which literally means “not cut” or indivisible.