The negativity contour: a quasi-local measure of entanglement for mixed states
The negativity contour: a quasi-local measure of entanglement for mixed states
In this paper, we study the entanglement structure of mixed states in quantum many-body systems using the $\textit{negativity contour}$, a local measure of entanglement that determines which real-space degrees of freedom in a subregion are contributing to the logarithmic negativity and with what magnitude. We construct an explicit contour function …