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Motivated by the recent experiments suggesting the importance of nematicityin the phase diagrams of ironbased and cuprate high-Tc superconductors, westudy the influence of nematicity on the collective modes inside thesuperconducting state in a non-equilibrium. In particular, we consider thesignatures of collective modes in short-time dynamics of a system withcompeting nematic and s- and d-wave superconducting orders. In the rotationallysymmetric state, we show that the Bardasis-Schrieffer mode, corresponding tothe subdominant pairing, hybridizes with the nematic collective mode and mergesinto a single in-gap mode, with the mixing vanishing only close to the phaseboundaries. For the d-wave ground state, we find that nematic interactionsuppresses the damping of the collective oscillations in the short-timedynamics. Additionally, we find that even inside the nematic s+d-wavesuperconducting state, a Bardasis-Schrieffer-like mode leads to order parameteroscillations that strongly depend on the competition between the two pairingsymmetries. We discuss the connection of our results to the recent pump-probeexperiments on high-Tc superconductors.

Interplay between nematicity and Bardasis-Schrieffer modes in the short-time dynamics of unconventional superconductors