Long-distance excitation energy transfer under strong laser drive

Strong molecule-light interaction enables the control of molecular structures and dynamical processes. A molecular model is proposed to greatly enhance the intermolecular distance of resonant energy transfer, where the molecules are strongly driven by an optical cavity. The optimal Rabi frequency and quantum yield of energy transfer are observed, resulting from the trade off between dipole-dipole interaction and molecule-cavity coupling. When the strong drive at certain Rabi frequency is applied, a larger spatial range of effective energy transfer and a slower decay rate with the distance compared to the F\"orster mechanism are predicted in our model. Our work sheds the light on the spectroscopic study of the cooperative energy transfer in molecular polaritons.