- #1
edguy99
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"To do this, the scientists turned the difficult analytical problem into an easy geometrical one. They showed that, in many cases, the amount of entanglement between states corresponds to the distance between two points on a Bloch sphere, which is basically a normal 3D sphere that physicists use to model quantum states."
Not sure I understand "we prove by a geometric argument that polynomial entanglement measures of degree 2 are independent of the choice of pure-state decomposition of a mixed state, when the latter has only one pure unentangled state in its range". What is "degree 2"?
https://phys.org/news/2016-02-physicists-easy-entanglementon-sphere.html
Not sure I understand "we prove by a geometric argument that polynomial entanglement measures of degree 2 are independent of the choice of pure-state decomposition of a mixed state, when the latter has only one pure unentangled state in its range". What is "degree 2"?
https://phys.org/news/2016-02-physicists-easy-entanglementon-sphere.html