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Finite temperature correlation functions from form factors

Castro-Alvaredo, O. & Fring, A. (2002). Finite temperature correlation functions from form factors. Nuclear Physics B, 636(3), pp. 611-631. doi: 10.1016/s0550-3213(02)00409-1


We investigate proposals of how the form factor approach to compute correlation functions at zero temperature can be extended to finite temperature. For the two-point correlation function we conclude that the suggestion to use the usual form factor expansion with the modification of introducing dressing functions of various kinds is only suitable for free theories. Dynamically interacting theories require a more severe change of the form factor program.

Publication Type: Article
Subjects: Q Science > QC Physics
Departments: School of Science & Technology > Mathematics
SWORD Depositor:
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