Continuous optimal ensembles II. Reducing the separability condition to numerical equations
Abstract
A density operator of a bipartite quantum system is called robustly separable if it has a neighborhood of separable operators. Given a bipartite density matrix, its property to be robustly separable is reduced, using the continuous ensemble method, to a finite number of numerical equations. The solution of this system exists for any robustly separable density operator and provides its representation by a continuous mixture of pure product states.
 Publication:

arXiv eprints
 Pub Date:
 April 2005
 DOI:
 10.48550/arXiv.quantph/0504034
 arXiv:
 arXiv:quantph/0504034
 Bibcode:
 2005quant.ph..4034Z
 Keywords:

 Quantum Physics
 EPrint:
 12 pages, LaTeX