Artículos de revistas
P-representable subset of all bipartite Gaussian separable states
Registro en:
Physical Review A. American Physical Soc, v. 70, n. 3, 2004.
1050-2947
WOS:000224623000151
10.1103/PhysRevA.70.034303
Autor
de Oliveira, MC
Institución
Resumen
P-representability is a necessary and sufficient condition for separability of bipartite Gaussian states only for the special subset of states whose covariance matrix are Sp(2,R)circle timesSp(2,R) locally invariant. Although this special class of states can be reached by a convenient Sp(2,R)circle timesSp(2,R) transformation over an arbitrary covariance matrix, it represents a loss of generality, avoiding inference of many general aspects of separability of bipartite Gaussian states. 70 3