Creation of Multipartite Entanglement and Entanglement Transfer via Heisenberg Interaction
Yong Zhang, Cao Wan-Cang, Long Gui-Lu · Chinese Physics Letters · 2005
We discuss how to create multipartite entanglement. By coupling a new particle with entangled particles via Heisenberg interaction between two particles, we can prepare three-particle entangled states. For some special coupling strength, entanglement transfer can be achieved from entangled pair AB to particles A and C that never interact by coupling particle C with particle B , which can be used to create entanglement between two separated particles.