Full symmetrization of two-mode entangled Gaussian states by local operations
Jaromı́r Fiurášek · Physical Review A · 2012
We investigate full symmetrization of two-mode entangled Gaussian states by local Gaussian operations and classical communication. We propose and analyze three deterministic strategies that convert an arbitrary two-mode entangled Gaussian state to a fully symmetric entangled Gaussian state that is not only invariant with respect to the exchange of the modes but also exhibits equally strong correlations of amplitude and phase quadratures of the two modes.