Nonlinear electron-phonon interactions drive light-induced symmetry switching in charge-density waves, as captured by a new first-principles simulation framework that reproduces key experimental features in TiSe2.
ˆQ+ Ω3 ℏβ 1/2# (A4) Combining all terms, we obtain the following equation of motion for the coordinate: ∂2 t Q+γ∂ tQ+ Ω 2Q=D(t) (A5) where: D(t) =− 3 2 p ℏΩβQ2 − ℏβ 2Ω Q3 −2ξ(t)
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Nonlinear electron-phonon coupling drives light-induced symmetry switching in charge-density waves
Nonlinear electron-phonon interactions drive light-induced symmetry switching in charge-density waves, as captured by a new first-principles simulation framework that reproduces key experimental features in TiSe2.