document: Conditions for the local manipulation of Gaussian states We present a general necessary and sufficient criterion for the possibility of a state transformation from one mixed Gaussian state to another of a bipartite continuous-variable system with two modes . The class of operations that will be considered is the set of local Gaussian completely positive trace-preserving maps
doc_bio_tags: O O O B I O B I O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O
extractive_keyphrases: local manipulation gaussian states state transformation
abstractive_keyphrases: bipartite continuous-variable system trace-preserving maps quantum information theory