"Finite size effect"의 두 판 사이의 차이

수학노트
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1번째 줄: 1번째 줄:
<h5 style="line-height: 3.428em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; color: rgb(34, 61, 103); font-family: 'malgun gothic', dotum, gulim, sans-serif; font-size: 1.166em; background-image: ; background-color: initial; background-position: 0px 100%;">introduction</h5>
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==introduction==
 
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* Casimir effect in [[QED]] is one example of finite size effect
* Casimir effect in [[QED]] is one example of finite size effect
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* the stress on the bounding surfaces when quantum field is confined to finite volume of space
* the stress on the bounding surfaces when quantum field is confined to finite volume of space
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*  type of boundaries
*  type of boundaries<br>
 
 
** real material media
 
** real material media
 
** interface between two different phases of the vacuum of a field theory such as QCD, in which case colored field may only exist in the interior region
 
** interface between two different phases of the vacuum of a field theory such as QCD, in which case colored field may only exist in the interior region
 
** topology of space
 
** topology of space
* the boundaries restrict the modes of the quantum fields 
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* the boundaries restrict the modes of the quantum fields
* give rise to measurable and important forces<br>
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* give rise to measurable and important forces
  
 
 
  
<h5>how to compute the Casimir effect</h5>
 
  
*  zero-point energy in the presence of the boundaries<br>
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==how to compute the Casimir effect==
 +
 
 +
*  zero-point energy in the presence of the boundaries
 
** sum over all modes
 
** sum over all modes
**  any kind of constraint or boudary conditions on the the zero-point modes of the quantum fields in question, including backgrounds such as gravity<br>
+
**  any kind of constraint or boudary conditions on the the zero-point modes of the quantum fields in question, including backgrounds such as gravity
** In a model without boundary conditions, the Hamiltonian value associated wih the vacuum or ground state, called zero-point energy, is usually discarded because, despite being infinite, may be reabsorbed in a suitable redefinition of the energy origin
+
** In a model without boundary conditions, the Hamiltonian value associated wih the vacuum or ground state, called zero-point energy, is usually discarded because, despite being infinite, may be reabsorbed in a suitable redefinition of the energy origin
 
** there are several ways to put such an adjustment into practice, normal ordering being oneof the most popular
 
** there are several ways to put such an adjustment into practice, normal ordering being oneof the most popular
*  Green's functions method<br>
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*  Green's functions method
** represents the vacuum expectation value of the produc of fields
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** represents the vacuum expectation value of the product of fields
*  
 
 
 
 
 
 
 
<h5>QFT interpretation of the Casimir effect</h5>
 
 
 
*  
 
 
 
 
 
  
 
 
  
<h5 style="line-height: 2em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; color: rgb(34, 61, 103); font-family: 'malgun gothic', dotum, gulim, sans-serif; font-size: 1.166em; background-image: ; background-color: initial; background-position: 0px 100%;">conformal transform from the plane to cylinder</h5>
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==QFT interpretation of the Casimir effect==
  
* <math>z \to w=\frac{L}{2\pi}\ln z</math>
 
*  energy momentum tensor changes<br><math>T_{cyl}(w)=(\frac{2\pi}{L})^2\{T_{pl}(z)z^2-\frac{c}{24}\}</math><br><math>L_0 \to L_0-c/24</math><br>
 
* the central charge emerges
 
* central charge is proportional to the Casimir energy, the change in the vacuum energy density brought about by the periodicity condition on the cylinder
 
  
 
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<h5 style="line-height: 2em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;">related items</h5>
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==related items==
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* [[cosmological constant]]
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* [[CFT on cylinder]]
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* [[Vacuum energy and Casimir effect]]
  
* [[cosmological constant]]<br>
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==books==
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* Kimball A. Milton [http://gigapedia.com/items:links?id=216868 The Casimir Effect: Physical Manifestations of Zero-Point Energy]
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* Claude Itzykson [http://www.springerlink.com/content/f374835722j24555/ Conformal invariance and finite size effects in critical two dimensional statistical models]
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* Michael Krech [http://www.amazon.com/Casimir-Effect-Critical-Systems/dp/9810218451 Casimir effect in critical systems]
  
 
 
  
<h5 style="line-height: 3.428em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; color: rgb(34, 61, 103); font-family: 'malgun gothic', dotum, gulim, sans-serif; font-size: 1.166em; background-image: ; background-color: initial; background-position: 0px 100%;">표준적인 도서 및 추천도서</h5>
 
  
*   <br>
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==encyclopedia==
* [[2009년 books and articles|찾아볼 수학책]]
 
* [http://gigapedia.com/items:links?id=216868 The Casimir Effect: Physical Manifestations of Zero-Point Energy]<br>
 
** [http://gigapedia.com/items:links?id=216868 ]Kimball A. Milton
 
* [http://www.springerlink.com/content/f374835722j24555/ Conformal invariance and finite size effects in critical two dimensional statistical models]<br>
 
** Claude Itzykson
 
* [http://www.amazon.com/Casimir-Effect-Critical-Systems/dp/9810218451 Casimir effect in critical systems]<br>
 
** Michael Krech
 
* http://gigapedia.info/1/Casimir+effect
 
* http://gigapedia.info/1/
 
* http://gigapedia.info/1/
 
* http://gigapedia.info/1/
 
* http://www.amazon.com/s/ref=nb_ss_gw?url=search-alias%3Dstripbooks&field-keywords=
 
 
 
 
 
 
 
 
 
 
 
<h5 style="line-height: 3.428em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; color: rgb(34, 61, 103); font-family: 'malgun gothic', dotum, gulim, sans-serif; font-size: 1.166em; background-image: ; background-color: initial; background-position: 0px 100%;">참고할만한 자료</h5>
 
  
 
* [http://ko.wikipedia.org/wiki/%EC%B9%B4%EC%8B%9C%EB%AF%B8%EB%A5%B4%ED%9A%A8%EA%B3%BC http://ko.wikipedia.org/wiki/카시미르효과]
 
* [http://ko.wikipedia.org/wiki/%EC%B9%B4%EC%8B%9C%EB%AF%B8%EB%A5%B4%ED%9A%A8%EA%B3%BC http://ko.wikipedia.org/wiki/카시미르효과]
74번째 줄: 45번째 줄:
 
* http://en.wikipedia.org/wiki/Casimir_effect
 
* http://en.wikipedia.org/wiki/Casimir_effect
 
* http://en.wikipedia.org/wiki/Vacuum_energy
 
* http://en.wikipedia.org/wiki/Vacuum_energy
* http://en.wikipedia.org/wiki/
 
* <br>
 
 
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* 구글 블로그 검색 http://blogsearch.google.com/blogsearch?q=casimir+effect
 
* 트렌비 블로그 검색 http://www.trenb.com/search.qst?q=
 
  
 
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==expositions==
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* http://arxiv.org/abs/1505.04237
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* https://docs.google.com/file/d/0B8XXo8Tve1cxaHFoSVV1QkZ6Y2M/edit
  
 
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==articles==
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* Pearce, Paul A., and Andreas Klümper. ‘Finite-Size Corrections and Scaling Dimensions of Solvable Lattice Models: An Analytic Method’. Physical Review Letters 66, no. 8 (25 February 1991): 974–77. doi:10.1103/PhysRevLett.66.974.
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* Batchelor, Murray T., Michael N. Barber, and Paul A. Pearce. ‘Bethe Ansatz Calculations for the Eight-Vertex Model on a Finite Strip’. Journal of Statistical Physics 49, no. 5–6 (1 December 1987): 1117–63. doi:10.1007/BF01017563.
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* Ian Affleck [http://dx.doi.org/10.1103/PhysRevLett.56.746 Universal term in the free energy at a critical point and the conformal anomaly], Phys. Rev. Lett. 56, 746–748 (1986)
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* H. W. J. Blöte, J. Cardy and M. P. Nightingale [http://dx.doi.org/10.1103/PhysRevLett.56.742 Conformal invariance, the central charge, and universal finite-size amplitudes at criticality], Phys. Rev. Lett. 56, 742–745 (1986)
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* Cardy, John L. 1986. “Operator Content of Two-dimensional Conformally Invariant Theories.” Nuclear Physics. B 270 (2): 186–204. doi:http://dx.doi.org/10.1016/0550-3213(86)90552-3.
  
 
 
  
<h5 style="line-height: 3.428em; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; color: rgb(34, 61, 103); font-family: 'malgun gothic', dotum, gulim, sans-serif; font-size: 1.166em; background-image: ; background-color: initial; background-position: 0px 100%;">TeX 작업</h5>
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2020년 11월 16일 (월) 08:53 기준 최신판

introduction

  • Casimir effect in QED is one example of finite size effect
  • the stress on the bounding surfaces when quantum field is confined to finite volume of space
  • type of boundaries
    • real material media
    • interface between two different phases of the vacuum of a field theory such as QCD, in which case colored field may only exist in the interior region
    • topology of space
  • the boundaries restrict the modes of the quantum fields
  • give rise to measurable and important forces


how to compute the Casimir effect

  • zero-point energy in the presence of the boundaries
    • sum over all modes
    • any kind of constraint or boudary conditions on the the zero-point modes of the quantum fields in question, including backgrounds such as gravity
    • In a model without boundary conditions, the Hamiltonian value associated wih the vacuum or ground state, called zero-point energy, is usually discarded because, despite being infinite, may be reabsorbed in a suitable redefinition of the energy origin
    • there are several ways to put such an adjustment into practice, normal ordering being oneof the most popular
  • Green's functions method
    • represents the vacuum expectation value of the product of fields


QFT interpretation of the Casimir effect

related items

books


encyclopedia


expositions

articles