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This result is true for low vortex density regime (i.e., n∼2-5, where n is the number of vortices per unit cell, see Ref.) which is relevant to the experimental situation described in Ref.. The transverse and longitudinal signals can eventually become of the same order of magnitude only for high vortex densities (n∼10), due to strong suppression of the longitudinal rectification (i.e., when both the signals become very weak).
