Cirac, J. I.Vidal, G.2004-12-142004-12-1420012001http://hdl.handle.net/2003/1877110.17877/DE290R-6579enThe American Physical SocietyPhysical Review Letters530Irreversibility in Asymptotic Manipulations of Entanglement10.1103/PhysRevLett.86.5803article (journal)