High-connectivity quantum processor nodes using single-ion qubits in rare-earth-ion-doped crystals
High-connectivity quantum processor nodes using single-ion qubits in rare-earth-ion-doped crystals
We present two protocols for constructing quantum processor nodes in randomly doped rare-earth-ion crystals and analyze their properties. By varying the doping concentration and the accessible laser tunability, the processor nodes can contain anywhere from only a few tens to almost 1000 qubits. Furthermore, the average number of qubits each …