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Quantum Mechanics: Giants

Quantum Mechanics: Giants. Hamilton, Hilbert, Planck, Einstein, Bohr, Heisenberg. William Hamilton. Aug. 4, 1804 – Sept. 2, 1865 Lived in Dublin Professor of Astronomy at Trinity in 1827 Had not yet graduated. William Hamilton: Work. Also studied dodecahedral calculus.

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Quantum Mechanics: Giants

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  1. Quantum Mechanics: Giants Hamilton, Hilbert, Planck, Einstein, Bohr, Heisenberg

  2. William Hamilton • Aug. 4, 1804 – Sept. 2, 1865 • Lived in Dublin • Professor of Astronomy at Trinity in 1827 • Had not yet graduated

  3. William Hamilton: Work • Also studied dodecahedral calculus • Hamilton’s Principle • Dynamics of physical system can be derived • Hamiltonian Mechanics • Model energy in a system • Similar to Lagrangian predictions

  4. David Hilbert • Jan. 23, 1862 - Feb. 14, 1943 • Lived in Germany • Mathematician • 23 Problems • Some remain unsolved • Axiomized geometry

  5. Hilbert Space Multiple or infinite-dimensional space Can model vibrations Einstein-Hilbert Action Action that yields Einstein’s Field Equations David Hilbert: Work • Almost got Special relativity first

  6. Max Planck • Apr. 23, 1858 - Oct. 4, 1947 • Lived in Germany • Won the Nobel Prize in Physics in 1918 • Enjoyed playing music • Worked closely with Einstein

  7. Max Planck: Work • Black-body radiation • Predicts radiation from black bodies based on wavelength • Introduces quanta • Planck constant • Sizes of quanta • Aided in acceptance of relativity

  8. Albert Einstein • Mar. 14, 1879 - Apr. 18, 1955 • Nobel Prize in Physics, 1921 • Time Person of the Century • Published over 300 scientific papers

  9. Albert Einstein: Work • Special relativity • Time, mass, length related to velocity • No absolute time • Speed of light is constant • General relativity • Gravity is curved spacetime

  10. Albert Einstein: Work - 2 • Mass-energy equivalence • E = mc2 • Quantification of Brownian motion • Photoelectric effect • Quanta release electrons on metal

  11. Niels Bohr • (This slide was corrupted.)

  12. Niels Bohr: Work • Assisted with 1913 alpha ray absorption paper • 115 publications, mostly on structure of matter • Worked in Los Alamos on Manhattan Project • After WWII, promoted peaceful nuclear energy • Correspondence principle • Quantum replicates Classical for large numbers • Principle of complementarity • Multiple contradictory traits cannot be examined simultaneously

  13. Niels Bohr: Work - 2 • Concerned with structure of atoms • Bohr/shell atomic model • Liquid Droplet theory of nucleus

  14. Werner Heisenberg • Dec. 5, 1901 - Feb. 1, 1976 • Won Nobel Prize in Physics in 1932 • for “creation of quantum mechanics” • Max Planck Medal in 1933

  15. Werner Heisenberg: Work • Matrix mechanics • Heisenberg Uncertainty Principle • Position & speed unknowable within a certain degree • Isospin • Subset of flavor description of particles

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