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Browsing by Author "Janik, Romuald A."
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A new derivation of Luscher F-term and fluctuations around the giant magnon
Heller, Michal P.; Janik, Romuald A.; Lukowski, Tomasz (2008-01-29)In this paper we give a new derivation of the generalized Luscher F-term formula from a summation over quadratic fluctuations around a given soliton. The result is very general providing that S-matrix is diagonal and is ...