The effect, called vacuum birefringence, comes from the theory of quantum electrodynamics (QED) and predicts that strong magnetic fields could polarize light in a vacuum.
from Space.com ift.tt/2fLPQiA
The effect, called vacuum birefringence, comes from the theory of quantum electrodynamics (QED) and predicts that strong magnetic fields could polarize light in a vacuum.
from Space.com ift.tt/2fLPQiA
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