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We calculate dynamical spin structure factors for gapped chiral spin liquidstates in the spin-1/2 Heisenberg antiferromagnet on the kagome lattice usingSchwinger-boson mean-field theory. In contrast to static (equal-time) structurefactors, the dynamical structure factor shows clear signatures of time-reversalsymmetry breaking for chiral spin liquid states. In particular, momentuminversion $\bm{k} \to -\bm{k}$ symmetry as well as the six-fold rotationsymmetry around the $\Gamma$-point are lost. We highlight other interestingfeatures, such as a relatively flat onset of the two-spinon continuum for the\emph{cuboc1} state. Our work is based on the projective symmetry groupclassification of time-reversal symmetry breaking Schwinger-boson mean-fieldstates by Messio, Lhuillier, and Misguich.

Spin structure factors of chiral quantum spin liquids on the kagome lattice