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. 2016 Feb 17;6:21235. doi: 10.1038/srep21235

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(a–c) time-dependent photo-emission spectrum in the upper Hubbard band, for three different temperatures. (Half-filled insulator at U = 12, amplitude E₀ = 6, N_ex ≈ 0.9%). (d) PES weight integrated in the high-energy window 9 ≤ ω ≤ 10 for various temperatures. The solid lines are exponential fits. (e) Frequency dependence of the relaxation for low temperatures, T = 0.1. These curves are normalized at t = 5.