"Spin system and Pauli exclusion principle"의 두 판 사이의 차이

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<h5 style="margin: 0px; line-height: 2em;">representation theory==
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==representation theory==
  
 
*  concept from the representation of  <math>SU(2)</math><br>
 
*  concept from the representation of  <math>SU(2)</math><br>
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<h5 style="line-height: 2em; margin: 0px;">Dirac wave equation[[search?q=dirac&parent id=6452627|search?q=dirac&parent id=6452627]]==
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==Dirac wave equation[[search?q=dirac&parent id=6452627|search?q=dirac&parent id=6452627]]==
  
 
* [[Dirac equation]]<br>
 
* [[Dirac equation]]<br>
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<h5 style="margin: 0px; line-height: 2em;">articles==
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==articles==
  
 
* W. Pauli, [http://prola.aps.org/abstract/PR/v58/i8/p716_1 The Connection Between Spin and Statistics] Phys. Rev. 58, 716 - 722 (1940)
 
* W. Pauli, [http://prola.aps.org/abstract/PR/v58/i8/p716_1 The Connection Between Spin and Statistics] Phys. Rev. 58, 716 - 722 (1940)
 
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[[분류:개인노트]]

2012년 10월 28일 (일) 17:49 판

introduction

  • the simplest example of quantum mechanical system
  • quantization of the angular momentum
  • measures as being some multiple of Planck's constant divided by 2pi

 

 

evolution of Pauli exclusion principle

  • originated from atomic spectroscopy
  • Dirac-antisymmetrizing the wave function for an assembly of indistinguishable particles
  • Pauli's spin matrices
  • anti-commutation relations for particle creation and annihilation operators in quantum field theory

 

 

 

representation theory

  • concept from the representation of  \(SU(2)\)
  • half of highest weight is called the spin of the module
    • Casimir operator can also detect this number.
  • spin \(1/2\) is the most important case since they are the matter particles
  • this is why we have half-integral spin although those representation are integral highest weight representations.

 

 

spin particle statstics

  • Bosons
    • photon
    • vector boson
    • Gluon
    • follows Bose-Einstein statistics
    • force-transmitting particles
  • Fermions = spin- \(1/2\) particles
    • quarks and leptons
    • follows Fermi-Dirac statistics
    • matter particles

 

 

Dirac wave equationsearch?q=dirac&parent id=6452627

 

 

 

articles