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        A new derivation of Luscher F-term and fluctuations around the giant magnon

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        0801.4463v3.pdf (PDF, 173Kb)
        Author
        Heller, Michal P.
        Janik, Romuald A.
        Lukowski, Tomasz
        Attention
        2299/20833
        Abstract
        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 valid for arbitrary dispersion relation. We then apply this formalism to compute the leading finite size corrections to the giant magnon dispersion relation coming from quantum fluctuations.
        Publication date
        2008-01-29
        Published in
        JHEP
        Published version
        https://doi.org/10.1088/1126-6708/2008/06/036
        Other links
        http://hdl.handle.net/2299/20833
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