Entangling two single-mode Gaussian states by use of a beam splitter
Hongrong Li, Li Fu-Li, Yang Yang · Chinese Physics · 2006
Considering two light beams which are in general single-mode Gaussian states and incident on input ports of an ideal beam splitter, respectively, this paper investigates how separability and entanglement of the output lights depend on degrees of nonclassicality and purities of the input states. The minimum and maximum amounts of attainable entanglement in the output state are found.