"Eight-vertex model and quantum XYZ model"의 두 판 사이의 차이

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* [http://www.research.att.com/%7Enjas/sequences/index.html The On-Line Encyclopedia of Integer Sequences]
 
* [http://www.research.att.com/%7Enjas/sequences/index.html The On-Line Encyclopedia of Integer Sequences]
 
* http://functions.wolfram.com/
 
* http://functions.wolfram.com/
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[[분류:integrable systems]]

2012년 10월 29일 (월) 08:51 판

introduction

  • This model includes the dimer, ice and zero-field Ising, F and KDP models as special cases.
  • Sutherland 1970 showed that any eight-vertex model transfer matrix commutes with an XYZ Hamiltonian
  • Baxter considered (unaware of Sutherland 1970) the problem of the commutation of two eight-vertex transfer matrices

 

 

 

Hamiltonian

  • XYZ Hamiltonian
    \(\hat H = -\frac{1}{2} \sum_{j=1}^{N} (J_x \sigma_j^x \sigma_{j+1}^x + J_y \sigma_j^y \sigma_{j+1}^y + J_z \sigma_j^z \sigma_{j+1}^z - h\sigma_j^{z})\)

 

 

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