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The story of Academic Publishing: from Galileo to Nature


The story of Academic Publishing: from Galileo to Nature

I was invited to give a seminar at the conference of young Italian researchers. At this conference I will present a  talk on the story of academic publishing. I will briflely present the story of academic publising, from the first journals to the modern publication system, passing through open access, impact factor, etc… I show… Read More

Theory of phonon-assisted luminescence


Theory of phonon-assisted luminescence

In this presentation I present the theory of phonon-assisted luminescence, in terms of non-equilibrium  Green’s functions and time-dependent perturbation theory. We derived a simple formule for light emission in the limit of low excited carriers including excitonic effects and then included coupling with phonons by time-dependent perturbation theory. This approach is then applied to the… Read More

How strong is the Second Harmonic Generation in single-layer monochalcogenides?


How strong is the Second Harmonic Generation in single-layer monochalcogenides?

Single-layer monochalcogenides have recently attracted much attention in the scientific community for their strong non-linear response, in particular the second harmonic generation(SHG). The origin of this strong response is still debated. A strong mismatch exist between theory and experiments. In order to clarify this issue, in this work we performed first-principles calculation of linear and… Read More