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A nonionizing ultrafast laser pulse of 20‐fs duration with a peak amplitude electric‐field ±E = 200 × 10−4 a.u. was simulated. It was applied to the ethene molecule to consider its effect on the electron dynamics, both during the application of the laser pulse and for up to 100 fs after the pulse was switched off. Four laser pulse frequencies ω = 0.2692, 0.2808, 0.2830, and 0.2900 a.u. were chosen...