Entanglement Capacity of Nonlocal Hamiltonians : A Geometric Approach

Behzad Lari, Ali Saif M. Hassan, Pramod S. Joag

Published 2009-04-20, updated 2010-07-20Version 2

We develop a geometric approach to quantify the capability of creating entanglement for a general physical interaction acting on two qubits. We use the entanglement measure proposed by us for $N$-qubit pure states (PRA \textbf{77}, 062334 (2008)). Our procedure reproduces the earlier results (PRL \textbf{87}, 137901 (2001)). The geometric method has the distinct advantage that it gives an experimental way to monitor the process of optimizing entanglement production.