Coherent phonon decoherence in crystals is shown to equal the imaginary part of the nonequilibrium phonon self-energy, and ab initio calculations for Bi and Sb reproduce experimental lifetime trends.
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Origin of phonon decoherence
Coherent phonon decoherence in crystals is shown to equal the imaginary part of the nonequilibrium phonon self-energy, and ab initio calculations for Bi and Sb reproduce experimental lifetime trends.