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Semiclassical structure constants in the eta-deformed AdS_5 x S^5: Leading finite-size corrections

We consider the leading finite-size effects on some structure constants for the $η$ - deformed $AdS_5\times S^5$ background in the framework of the semiclassical approach. The leading finite-size corrections are derived for the cases when we have two heavy string states represented by giant magnons and for two different choices of the light states corresponding to dilaton operator with nonzero momentum and primary scalar operators. Since the dual field theory is still unknown, the results obtained here must be considered as conjectures or as predictions from the string theory side.