Fusion temperature: importance of quantum tunnelling

Estimating the temperature required for nuclear fusion to occur, using two simple models, one classical and one quantum. Comparing the models shows that we need to invoke quantum tunnelling to obtain a realistic value for the temperature!
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About me: I studied Physics at the University of Cambridge, then stayed on to get a PhD in Astronomy. During my PhD, I also spent four years teaching Physics undergraduates at the university. Now, I'm working as a private tutor, teaching Physics & Maths up to A Level standard.
My website: benyelverton.com/
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