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We investigate the asymptotic behaviour of spin-spin correlation functions for the integrable Heisenberg chain. To this end we use the Quantum Transfer Matrix (QTM) technique developed in \cite{AK} which results in a set of non-linear integral equati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0425b1973792ae7b7dad58e4990eb90
http://arxiv.org/abs/cond-mat/0004379
http://arxiv.org/abs/cond-mat/0004379