Cirac, J. I.Dür, W.Kraus, B.Lewenstein, M.2004-12-102004-12-1020012001http://hdl.handle.net/2003/1814910.17877/DE290R-12094enThe American Physical SocietyPhysical Review Letters530Entangling Operations and Their Implementation Using a Small Amount of Entanglement10.1103/PhysRevLett.86.544article (journal)