Correlation Functions for Lattice Integrable Models
DOI:
https://doi.org/10.14311/959Keywords:
Quantum integrable models, correlation functions, exactly solvable models of statistical physicsAbstract
In this lectures I consider the problem of calculating the correlation functions for XXZ spin chain. First, I explain in details the free fermion case. Then I show that for generic coupling constant the fermionic operators acting on the space of quasi-local fields can be introduced. In the basis generated by these fermionic operators the correlation functions are given by determinants as in the free fermion case.Downloads
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