Exact zeros of entanglement for arbitrary rank-two mixtures derived from a geometric view of the zero polytope

  • Andreas Osterloh
  • December 2016, American Physical Society (APS)
  • DOI: 10.1103/physreva.94.062333

The convex roof: learning by doing

What is it about?

It is a work explaining in detail how the technique to come close or even obtain the convex roof for a given entanglement measure in a density matrix of rank two. It takes some emphasis on special decompositions of the density matrix, which in certain cases become optimal.

Why is it important?

It is an important step towards a better understanding of how the convex roof construction will work for a density matrix of rank two with a glimpse also on higher rank: there we have the same convex structure behind which might involve similar solutions.


Dr. Andreas Osterloh

In this work I am explaining on two examples how the technique elaborated in earlier work really works and what is the logic behind.

Read Publication


The following have contributed to this page: Dr. Andreas Osterloh