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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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slide1

Quantum Mechanics: Giants

Hamilton, Hilbert, Planck, Einstein, Bohr, Heisenberg

william hamilton
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
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
david hilbert
David Hilbert
  • Jan. 23, 1862 - Feb. 14, 1943
  • Lived in Germany
  • Mathematician
  • 23 Problems
    • Some remain unsolved
  • Axiomized geometry
david hilbert work
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
max planck
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
max planck work
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
albert einstein
Albert Einstein
  • Mar. 14, 1879 - Apr. 18, 1955
  • Nobel Prize in Physics, 1921
  • Time Person of the Century
  • Published over 300 scientific papers
albert einstein work
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
albert einstein work 2
Albert Einstein: Work - 2
  • Mass-energy equivalence
    • E = mc2
  • Quantification of Brownian motion
  • Photoelectric effect
    • Quanta release electrons on metal
niels bohr
Niels Bohr
  • (This slide was corrupted.)
slide12

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
niels bohr work 2
Niels Bohr: Work - 2
  • Concerned with structure of atoms
    • Bohr/shell atomic model
    • Liquid Droplet theory of nucleus
werner heisenberg
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
werner heisenberg work
Werner Heisenberg: Work
  • Matrix mechanics
  • Heisenberg Uncertainty Principle
    • Position & speed unknowable within a certain degree
  • Isospin
    • Subset of flavor description of particles