A better article[1] including a link to the paper[2] [1] http://physics.aps.org/articles/v7/111 http://physics.aps.org/articles/v7/111 [2] http://physics.aps.

A better article[1] including a link to the paper[2] [1] http://physics.aps.org/articles/v7/111 http://physics.aps.org/articles/v7/111 [2] http://physics.aps.org/featured-article-pdf/10.1103/PhysRevLett.113.181101 http://physics.aps.org/featured-article-pdf/10.1103/PhysRevL...