XX and Ising limits in integral formulae for finite temperature correlation functions of the XXZ chain
May, 200516 pages
Published in:
- Theor.Math.Phys. 146 (2006) 119-130,
- Teor.Mat.Fiz. 146 (2006) 146-160
e-Print:
- hep-th/0505091 [hep-th]
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Abstract:
We consider a multiple integral representation for a one-parameter generating function of the finite temperature - correlation functions of the antiferromagnetic spin-1/2 XXZ chain in the XX limit and in the Ising limit. We show how in these limits the multiple integrals reduce to single integrals, thereby reproducing known results.- 75.10.Pq
- 05.30.-d
- quantum spin chain
- exact finite-temperature correlation functions
- XX model
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