People have been making qubits in the form of nitrogen vacancy (NV) centers in diamonds for quite a long time. See, for example this https://arxiv.org/abs/quan

People have been making qubits in the form of nitrogen vacancy (NV) centers in diamonds for quite a long time. See, for example this https://arxiv.org/abs/quant-ph/0510152 https://arxiv.org/abs/quant-ph/0510152 from 2005. No idea what these Canberra people are doing that is different/special, but the general ideas are quite well trodden ground.