Detection of genuine tripartite entanglement by two bipartite entangled states

TL;DR

This paper explores how to construct and detect genuine tripartite entanglement using two bipartite Werner states, providing parameter conditions and experimental detection methods, along with bounds on entanglement concurrence.

Contribution

It introduces a method to generate and identify genuine tripartite entanglement from two bipartite Werner states, including experimental detection techniques and entanglement bounds.

Findings

Derived parameter intervals for Werner states to ensure genuine tripartite entanglement.

Proposed experimental methods for detecting tripartite entanglement.

Established lower bounds for multipartite entanglement concurrence.

Abstract

It is an interesting problem to construct genuine tripartite entangled states based on the collective use of two bipartite entangled states. We consider the case that the states are two-qubit Werner states, we construct the interval of parameter of Werner states such that the tripartite state is genuine entangled. Further, we present the way of detecting the tripartite genuine entanglement using current techniques in experiments. We also investigate the lower bound of genuine multipartite entanglement concurrence.