Chapter 3 - The World of Atoms
Overview of the New Paradigm
Richard Feynman
Background Reading
L. J. Curtis, "Einstein's Contributions
to Atomic Physics," Phys. Scr. 79, 058101 (2009).
Introduction
Did you see the elephant?
The new paradigm (ppt)
I. Configuration Space and "Spin" Space
Examples of Fermions & Bosons
Spin and rotation
Up-down as orthogonal coordinates
Philippine wine dance
continued
Port Lawrence and Vistula Meadows
Mixed basis vectors
Volumes and surfaces in N dimensions
Low order spin doctors
II. Particulate Granularity
Attraction and repulsion of neutral atoms
Einstein & Brownian motion
STM
Phenomenon of tunnelling
Examples
Waiting for the traffic to clear
Scanning Tunnelling Microscope
Animation
III. The Principle of Least Action
Nature is symmetric in space and time
Finding
extrema
Least time in optics
Electromagnetic spectrum
Hindered march
Bending light
Least time
Fermat's principle applet
By calculus
Least action in dynamics
Maupertuis Dynamics
Explore all paths until measurement
Interactive Java applets
du Châtelet
French mathematicians
Quantization
Beads of action in a libration
Beads of action in a rotation
The Maslov index
Feynman and least action
Exercise
Plot
A call to action
IV. Microscopic probabilities
Discrete outcomes
Molecules in a room
Coin tosses
Quantum coins
Shared birthdays
Number of pairs
Population dynamics
Dice casting
Quantum dice
Quantum statistics
is simple compared to ...
A Bose ensemble
Coherence
Boson and Fermion modes of marching troops
V. The Dwell Time Formulation
Probabilities ppt
Planetary motion
r-powers of energy corrections
Average of powers of r
Multipole expansion
Planetary data
Multipole expansion
General relativity
VI. Fermion-Boson Connectivity
Electrons and positrons and the direction of time
Electron-Positron events
Gamma rays on lead in a spark chamber
Bubble chamber tracks
e-p pair creation & annihilation
One universal electron travelling reversibly in
time
Wheeler
Feynman's Nobel Address
Bombardier
Mach's Principle: every interaction
involves the entire universe
Feynman diagrams
Positrons and the PET scan
PET sources
The space-time continum and our 3-space world
3D projections of a
4D object
A point particle with action & magnetism?
Foldy-Wouthuysen projection
Zitterbewegung
Absorption and emission of virtual photons
Time "passage"
Time rates
History of moving pictures
The Lumiere brothers
Stop action
Slow-motion photography
Time-lapse photography
Reverse-action photography
Moses
Time exposure: A landscape-timescape
Equal matter and antimatter
Sam Ting
Bill Moyers interview with Sam Ting
1976 Nobel
Marty Perl at Blåhallen 1995
Blåhallen
The photon-dressed electron
The photon re-invents itself
SpongeBob clones himself -
Alternative
site
Crossed optical polarizers
Pulling
a perfect pint
Quantum entanglement
Surface reflection
Bosons and ants
Celeritas
Relativistic distortions
Apparent length contraction
Animation
Einstein, Ann. Phys, Chim 17, 890-921 (1905).
English translation
Relativity is magnetism, not rocket ships
Magnetism - retarded photon information
Woldemar Voigt's 1887 discovery
Voigt bio
Force between a moving charge and a current
Binomial expansion
Reverse direction
Summary
Inert gases - closed magnetic coupling
Periodic table
Mendeleev
Periodic table
Electron configurations
continued
Rare earth permanent magnets
Why is mercury metal a liquid, and why is gold yellow?
Core penetration by s-orbitals
VII. The Limitations of Cause and Effect
Indeterminacy
Joint uncertainty in canonical quantities
Cometary orbit
Clyde
Tombaugh
Changing the legal landscape
Harvard Law Review
Economic
Theory of Rational Expectations
Non-Nobel Prize
money
Mathematics - A purely intellectual endeavor becomes an experimental
science
Urban legend
Continued
Mittag-Leffler
Chaos and fractal escapes
The exponential law
With immortality
The logistic equation
Population data
Predator-prey
Chaotic behavior
Malthusian limit
Haber process
Norman Borlaug
Clock
Iteration example 1
Radiation from a solid
Iteration example 2
Iterating the logistic equation
Complex number iteration
Mandelbrot equation
Mandelbrot set
Mandelbrot diverse
Mandelbrot zoom
Källén Prize
Fractals
Mountains
Fall break
2009 Nobel Prize in Physics
NASA discovers hugh new ring of Saturn
NASA site for Moon crash
Gleick
Fractal fern
Experimental measurement
Fractal landscape
Terragen
Fractal
compression
Examples
Weather
Edward
Lorenz
Poincaré
The length of a coastline
The length of the
yardstick
The Stock Market
Mandelbrot on Wall Street
Gould:
Punctuated Equilibrium
William Golding
Planetary Motion
Chaotic orbits of Saturn's moons
Theatre
Arcadia
Quantum and classical chaos
Stone article
Quantum chaos
Musings of Feynman
"I live with not knowing some things."
Feynman -
like it or...
Chapter 4
Overview(ppt)
Intersecting connections
Källén Prize
1987 AJP paper
Announcement
Wallenberg
Nane Lagergren
Photo
Intrinsic Action
Its many properties
Momentum
Examples: problems solved by action conservation