Another write-up that's maybe more straightforward: http://www.sci-news.com/astronomy/vacuum-birefringence-04410.html http://www.sci-news.com/astronomy/vacuum-b

Another write-up that's maybe more straightforward: http://www.sci-news.com/astronomy/vacuum-birefringence-04410.html http://www.sci-news.com/astronomy/vacuum-birefringence-04410... prepublish link: https://arxiv.org/abs/1610.08323 https://arxiv.org/abs/1610.08323 pdf: https://arxiv.org/pdf/1610.08323v2.pdf https://arxiv.org/pdf/1610.08323v2.pdf // Edit: And maybe someone can explain this to me, but the "polarization in -> polarization out" artist's rendering isn't in their paper. Where did it come from? Is it showing the example of what would be happening if the effect was happening at 100% ? http://cdn.sci-news.com/images/enlarge3/image_4410_2e-Vacuum-Birefringence.jpg http://cdn.sci-news.com/images/enlarge3/image_4410_2e-Vacuum...