The Universality of Physics By Won S Oh Spatial Dimensions in Physics Dimension 0 th 1 st 2 nd 3 rd 4 th A dot A line A square A cube A tesseract cubic world with time ID: 588823
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Slide1
The String Theory
The Universality of Physics
By: Won S. OhSlide2
Spatial Dimensions in Physics
Dimension
0
th
1st2nd3rd4thA dotA lineA squareA cubeA tesseract—cubic world with “time”Slide3
The Physical Forces – Fundamental interactions
Interactions
Current Theory
Mediators
Relative StrengthLong distance BehaviorRange (m)StrongQuantum Chromodynamics (QCD)gluons102811.4 * 10-15
Electromagnetic (EM)
Quantum Electrodynamics (QED)photons
10
361/r21045
Weak
Electroweak
W & Z Bosons1025e–m W,Z r/r10-17GravitationGeneral Relativitygravitons11/r2INFINITY
http://hyperphysics.phy-astr.gsu.edu/hbase/forces/funfor.htmlSlide4
The Accidental Discovery
Gabriele Veneziano, an Italian theoretical physicist in CERN, “accidentally” founded the field of string theory while going through the Euler’s mathematical functions.Slide5
Particles
What are particles?Mainly viewed as points (0
th
Dimension)Slide6
Classical Mechanics
Newton, the significant contributorBased on Observations
Explained how our “world” functions
Calculus founded for calculations
Modern PhysicsSlide7
THE MODERN PHYSICS – Dealing with the microscopic world
The modern physics required something “new”
General Relativity
Quantum Mechanics
Condensed MatterNuclear and Atomic PhysicsSlide8
Particles… Again
Instead of dotsThe StringsSlide9
The Contributors to String Theory
Michael DuffMichael Green
Brian Greene
Alexander
PolyakovGabriele VenezianoPlease also read