Entanglement sudden death as an indicator of fidelity in a four-qubit cluster state
Entanglement sudden death as an indicator of fidelity in a four-qubit cluster state
I explore the entanglement evolution of a four-qubit cluster state in a dephasing environment concentrating on the phenomenon of entanglement sudden death (ESD). Specifically, I ask whether the onset of ESD has an effect on the utilization of this cluster state as a means of implementing a single-qubit rotation in …