"Constrained system : U(1) pure gauge theory"의 두 판 사이의 차이

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==introduction</h5>
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==introduction==
  
 
*  U(1) pure gauge theory  : theory of light (without matter)<br><math>\mathcal{L}_{\text{free}} = - \frac{1}{4}F_{\mu\nu}F^{\mu\nu}</math><br>
 
*  U(1) pure gauge theory  : theory of light (without matter)<br><math>\mathcal{L}_{\text{free}} = - \frac{1}{4}F_{\mu\nu}F^{\mu\nu}</math><br>
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==Gupta-Bleuler quantization of QED</h5>
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==Gupta-Bleuler quantization of QED==
  
 
* Gupta-Bleuler Method [http://en.wikipedia.org/wiki/Gupta%E2%80%93Bleuler_formalism http://en.wikipedia.org/wiki/Gupta–Bleuler_formalism]
 
* Gupta-Bleuler Method [http://en.wikipedia.org/wiki/Gupta%E2%80%93Bleuler_formalism http://en.wikipedia.org/wiki/Gupta–Bleuler_formalism]
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==remark</h5>
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==remark==
  
 
*  if matter exists, we get [[QED]]<br><math>\mathcal{L}_{\text{free}} = \bar{\psi} (i\gamma^\mu \partial_\mu -m)\psi - \frac{1}{4}F_{\mu\nu}F^{\mu\nu}</math><br>
 
*  if matter exists, we get [[QED]]<br><math>\mathcal{L}_{\text{free}} = \bar{\psi} (i\gamma^\mu \partial_\mu -m)\psi - \frac{1}{4}F_{\mu\nu}F^{\mu\nu}</math><br>
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==history</h5>
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==history==
  
 
* http://www.google.com/search?hl=en&tbs=tl:1&q=
 
* http://www.google.com/search?hl=en&tbs=tl:1&q=
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==related items</h5>
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==related items==
  
 
* [[no-ghost theorem and the construction of moonshine module and monster Lie algbera]]
 
* [[no-ghost theorem and the construction of moonshine module and monster Lie algbera]]
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<h5 style="line-height: 3.428em; margin: 0px; color: rgb(34, 61, 103); font-family: 'malgun gothic',dotum,gulim,sans-serif; font-size: 1.166em; background-position: 0px 100%;">encyclopedia</h5>
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<h5 style="line-height: 3.428em; margin: 0px; color: rgb(34, 61, 103); font-family: 'malgun gothic',dotum,gulim,sans-serif; font-size: 1.166em; background-position: 0px 100%;">encyclopedia==
  
 
* http://en.wikipedia.org/wiki/
 
* http://en.wikipedia.org/wiki/
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==books</h5>
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==books==
  
 
 
 
 
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==expositions</h5>
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==expositions==
  
 
 
 
 
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<h5 style="line-height: 3.428em; margin: 0px; color: rgb(34, 61, 103); font-family: 'malgun gothic',dotum,gulim,sans-serif; font-size: 1.166em; background-position: 0px 100%;">articles</h5>
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<h5 style="line-height: 3.428em; margin: 0px; color: rgb(34, 61, 103); font-family: 'malgun gothic',dotum,gulim,sans-serif; font-size: 1.166em; background-position: 0px 100%;">articles==
  
 
 
 
 
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==question and answers(Math Overflow)</h5>
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==question and answers(Math Overflow)==
  
 
* http://mathoverflow.net/search?q=
 
* http://mathoverflow.net/search?q=
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==blogs</h5>
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==blogs==
  
 
*  구글 블로그 검색<br>
 
*  구글 블로그 검색<br>
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==experts on the field</h5>
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==experts on the field==
  
 
* http://arxiv.org/
 
* http://arxiv.org/
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==links</h5>
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==links==
  
 
* [http://detexify.kirelabs.org/classify.html Detexify2 - LaTeX symbol classifier]
 
* [http://detexify.kirelabs.org/classify.html Detexify2 - LaTeX symbol classifier]
 
* [http://pythagoras0.springnote.com/pages/1947378 수식표현 안내]
 
* [http://pythagoras0.springnote.com/pages/1947378 수식표현 안내]

2012년 10월 28일 (일) 15:26 판

introduction

  • U(1) pure gauge theory  : theory of light (without matter)
    \(\mathcal{L}_{\text{free}} = - \frac{1}{4}F_{\mu\nu}F^{\mu\nu}\)
  • quantization of the photon field http://www.ecm.ub.es/~espriu/teaching/classes/fae/LECT4.pdf
    • fix the gauge
    • quantize unconstrained system
    • gives physical and unphysical states (negative norm states)
    • impose the constraint condition to remove negative norm states
    • we get a Hilbert space of physical states

 

 

Gupta-Bleuler quantization of QED

 

 

 

remark

  • if matter exists, we get QED
    \(\mathcal{L}_{\text{free}} = \bar{\psi} (i\gamma^\mu \partial_\mu -m)\psi - \frac{1}{4}F_{\mu\nu}F^{\mu\nu}\)

 

 

history

 

 

related items

 

 

encyclopedia==    

books

 

 

 

expositions

 

 

articles==      

question and answers(Math Overflow)

 

 

 

blogs

 

 

experts on the field

 

 

links