"Z k parafermion theory"의 두 판 사이의 차이

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(피타고라스님이 이 페이지의 이름을 parafermion로 바꾸었습니다.)
 
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==introduction==
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* parafermionic Hilbert space
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* defined by the algebra of parafermionic fields <math>\psi_1</math> and <math>\psi _1^{\dagger }</math> of dimension 1-1/k and central charge
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:<math>c=\frac{k \dim \mathfrak{g}}{k+h^{\vee}}-\operatorname{rank}\mathfrak{g}=\frac{3k}{k+2}-1=\frac{2(k-1)}{(k+2)}</math>
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where <math>\mathfrak{g}=\mathfrak{sl}_2</math> and <math>k=2</math>
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* the highest-weight modules are parametrized by an integer (Dynkin label) <math>l</math> with <math>0\leq l < k</math>
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* <math>\mathbb{Z}_k</math> parafermion theory is known to be equivalent to the coset <math>\hat{\text{su}}(2)_k/\hat{u}(1)_k</math>
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* Kac and Peterson (1984) obtained expression for the parafermion characters
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* Lepowsky-Primc (1985) expression in fermionic form
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* third expression
  
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==examples==
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* <math>k=1</math>, [[Ising models]]
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* <math>k=2</math>, [[3-states Potts model]]
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==<math>\mathbb{Z}_{n+1}</math> theory==
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*  central charge<math>\frac{2n}{n+3}</math>
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==history==
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* http://www.google.com/search?hl=en&tbs=tl:1&q=
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==related items==
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* [[String functions and branching functions]]
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* [[modular invariant partition functions|CFT on torus and modular invariant partition functions]]
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* [[Graded parafermion theory]]
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==computational resource==
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* https://docs.google.com/file/d/0B8XXo8Tve1cxZzRnSkZJZ0kyZlE/edit
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==expositions==
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* Gepner, [http://www.integrable-qft.uni-wuppertal.de/program/Gepner.pdf Level Two String Functions and Rogers Ramanujan Type Identities]
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* http://physics.stackexchange.com/questions/76617/what-is-parafermion-in-condensed-matter-physics
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==articles==
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* Bianchini, Davide, Elisa Ercolessi, Paul A. Pearce, and Francesco Ravanini. ‘RSOS Quantum Chains Associated with Off-Critical Minimal Models and <math>\mathbb{Z}_n</math> Parafermions’. arXiv:1412.4942 [cond-Mat, Physics:hep-Th, Physics:math-Ph], 16 December 2014. http://arxiv.org/abs/1412.4942.
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* Fateev, V. A., and Al. B. Zamolodchikov. “Integrable Perturbations of ZN Parafermion Models and the O(3) Sigma Model.” Physics Letters B 271, no. 1–2 (November 14, 1991): 91–100. doi:10.1016/0370-2693(91)91283-2.
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* Bilal, Adel. “Bosonization of ZN Parafermions and su(2)N KAČ-Moody Algebra.” Physics Letters B 226, no. 3–4 (August 10, 1989): 272–78. doi:[http://dx.doi.org/10.1016/0370-2693%2889%2991194-5 10.1016/0370-2693(89)91194-5].
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[[분류:개인노트]]
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[[분류:conformal field theory]]
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[[분류:migrate]]

2020년 11월 16일 (월) 07:09 기준 최신판

introduction

  • parafermionic Hilbert space
  • defined by the algebra of parafermionic fields \(\psi_1\) and \(\psi _1^{\dagger }\) of dimension 1-1/k and central charge

\[c=\frac{k \dim \mathfrak{g}}{k+h^{\vee}}-\operatorname{rank}\mathfrak{g}=\frac{3k}{k+2}-1=\frac{2(k-1)}{(k+2)}\] where \(\mathfrak{g}=\mathfrak{sl}_2\) and \(k=2\)

  • the highest-weight modules are parametrized by an integer (Dynkin label) \(l\) with \(0\leq l < k\)
  • \(\mathbb{Z}_k\) parafermion theory is known to be equivalent to the coset \(\hat{\text{su}}(2)_k/\hat{u}(1)_k\)
  • Kac and Peterson (1984) obtained expression for the parafermion characters
  • Lepowsky-Primc (1985) expression in fermionic form
  • third expression

examples


\(\mathbb{Z}_{n+1}\) theory

  • central charge\(\frac{2n}{n+3}\)


history



related items


computational resource


expositions


articles

  • Bianchini, Davide, Elisa Ercolessi, Paul A. Pearce, and Francesco Ravanini. ‘RSOS Quantum Chains Associated with Off-Critical Minimal Models and \(\mathbb{Z}_n\) Parafermions’. arXiv:1412.4942 [cond-Mat, Physics:hep-Th, Physics:math-Ph], 16 December 2014. http://arxiv.org/abs/1412.4942.
  • Fateev, V. A., and Al. B. Zamolodchikov. “Integrable Perturbations of ZN Parafermion Models and the O(3) Sigma Model.” Physics Letters B 271, no. 1–2 (November 14, 1991): 91–100. doi:10.1016/0370-2693(91)91283-2.
  • Bilal, Adel. “Bosonization of ZN Parafermions and su(2)N KAČ-Moody Algebra.” Physics Letters B 226, no. 3–4 (August 10, 1989): 272–78. doi:10.1016/0370-2693(89)91194-5.