"Finite size effect"의 두 판 사이의 차이

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==introduction==
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* 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
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*  type of boundaries
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** real material media
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** 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
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** topology of space
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* the boundaries restrict the modes of the quantum fields
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* give rise to measurable and important forces
  
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==how to compute the Casimir effect==
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*  zero-point energy in the presence of the boundaries
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** sum over all modes
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**  any kind of constraint or boudary conditions on the the zero-point modes of the quantum fields in question, including backgrounds such as gravity
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** 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
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** there are several ways to put such an adjustment into practice, normal ordering being oneof the most popular
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*  Green's functions method
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** represents the vacuum expectation value of the product of fields
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==QFT interpretation of the Casimir effect==
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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]]
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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]
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==encyclopedia==
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* [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]
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* http://en.wikipedia.org/wiki/finite_size_effect
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* http://en.wikipedia.org/wiki/Casimir_effect
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* http://en.wikipedia.org/wiki/Vacuum_energy
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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.
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[[분류:개인노트]]
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[[분류:Number theory and physics]]
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[[분류:migrate]]

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