Quantum nanoplasmonic coherent perfect absorption and plasmonic ‘hot-spot’ nanoheating of color centres for quantum operations at elevated temperatures

Using subdiffracted light from a nanoplasmonic resonator we demonstrate hot-spot nanoheating control of quantum operations at elevated temperatures via temperature-induced shifts of the transition energies of the individual qubits in and out of resonance with the near-field. This introduces a dynamical switch for optical quantum control, significantly elevating solid-state quantum information processing technologies towards higher temperatures.