Detecting and Estimating Continuous-Variable Entanglement by Local Orthogonal Observables
Detecting and Estimating Continuous-Variable Entanglement by Local Orthogonal Observables
Entanglement detection and estimation are fundamental problems in quantum information science. Compared with discrete-variable states, for which lots of efficient entanglement detection criteria and lower bounds of entanglement measures have been proposed, the continuous-variable entanglement is much less understood. Here we shall present a family of entanglement witnesses based on …