Living Physics

Living Physics

From green leaves to bird brains, biological systems may exploit quantum phenomena

By Susan Gaidos, 11:52 AM April 23, 2009

Until a century or so ago, nobody had any idea that there even was such a thing as quantum physics. But while humans operated for millennia in quantum darkness, it seems that plants, bacteria and birds may have been in the know all along.

Quantum effects, human researchers have only recently discovered, may explain how the first steps of photosynthesis convert light to chemical energy with such high efficiency. Other studies suggest that quantum tricks may enable migratory birds to navigate us...

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