Manipulation and Preparation of Five-Particle Entanglement

By making gooduseofcertain quantum physics properties such as entanglement,teleportation and superposition, aquantum computer has the potentialto be much more powerful than aclassical computer of the same size.Although quantum-mechanical en-tanglement of three or four particleshasbeenachievedexperimentally,andhas been used to demonstrate theextremecontradictionbetween quan-tum mechanics and localrealism, therealization of five-particleentanglement, untilrecently, remainsan experim…