"Finite size effect"의 두 판 사이의 차이

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* [[cosmological constant]]
 
* [[cosmological constant]]
 
* [[CFT on cylinder]]
 
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* [[Vacuum energy and Casimir effect]]
 
 
 
  
 
==books==
 
==books==
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* http://en.wikipedia.org/wiki/Vacuum_energy
 
* 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
  
 
==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.
 
* 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)
 
* 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)
 
* 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)
 
* 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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[[Category:research topics]]
 
 
[[분류:Number theory and physics]]
 
[[분류:Number theory and physics]]
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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