Non-Decomposable Quantum Dynamical Semigroups and Bound Entangled States
Fabio Benatti, Roberto Floreanini, Marco Piani · Open Systems & Information Dynamics · 2004
We use open quantum system techniques to construct one-parameter semigroups of positive maps and apply them to study the entanglement properties of a class of 16-dimensional density matrices, representing states of a 4 × 4 bipartite system.