Cutting edge introduction: perturbing the smile

Perturbing the smile

Concept image of yellow smiley face balls

The bongo-drumming, wise-cracking, safe-cracking, theoretical physicist Richard Feynman understood quantum physics as well as anybody. However, that is not saying much, according to him. “I think I can safely say that nobody understands quantum mechanics,” he once said.

That a man whose advances in the field did so much to illuminate it – and who helped create arguably its most successful scientific theory ever in quantum electrodynamics – could be so resigned to its elusive character does not

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