Initial Experiments Concerning Quantum Information Processing in Rare-Earth-Ion Doped Crystals

Abstract

In this paper initial experiments towards constructing simple quantum gates\nin a solid state material are presented. Instead of using specially tailored\nmaterials, the aim is to select a subset of randomly distributed ions in the\nmaterial, which have the interaction necessary to control each other and\ntherefore can be used to do quantum logic operations. The experimental results\ndemonstrate that part of an inhomogeneously broadened absorption line can be\nselected as a qubit and that a subset of ions in the material can control the\nresonance frequency of other ions. This opens the way for the construction of\nquantum gates in rare-earth-ion doped crystals.\n