Are running couplings distinctively 'quantum'?

vendredi 29 août 2014

As is well known, the charges through which particles interact scale with the energy in QFT. What I was wondering is: can we say that this is a peculiarly 'quantum' phenomenon (or maybe, quantum-relativistic)? Is there a reason why it wouldn't be the case in a classical universe, for example?



Just a rainy afternoon question... any thoughts or musings would be appreciated!





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