Local Broadcasting of Quantum Correlations

Understand

Operations that are trivial in the classical world, like accessing information without introducing any change or disturbance, or like copying information, become non-trivial in the quantum world.

• In this note we discuss several limitations in the local redistributing correlations, when it comes to dealing with bipartite quantum states.
• In particular, we focus on the task of local broadcasting, by discussing relevant no-go theorems, and by quantifying the non-classicality of correlations in terms of the degree to which local broadcasting is possible in an approximate fashion.