quantum Fisher information via temperature dependent inelastic neutron scattering measurement in single crystals of a spin ½ Heisenberg dimer C8D16Cu2O10

Entanglement is considered a resource in quantum information theory that enables quantum computation. We have calculated bipartite entanglement in a well-known spin ½ Heisenberg chain dimer system C8D16Cu2O10 using temperature dependent magnetic susceptibility measurements. The calculations show the presence of an entanglement temperature near the room temperature. Fisher information has recently been proposed as a measure for m-particle multipartite entanglement that can be obtained via inelastic neutron scattering measurements. Using temperature dependent inelastic neutron scattering measurements on large sized single crystals of C8D16Cu2O10, we wish to confirm the existence of multipartite entanglement in C8D16Cu2O10 till room temperature and provide a model experimental system that could be a potential quantum computer.