Ultralow-power spectroscopy of a rare-earth spin ensemble using a superconducting resonator
Ultralow-power spectroscopy of a rare-earth spin ensemble using a superconducting resonator
Interfacing superconducting quantum processors, working in the GHz frequency range, with optical quantum networks and atomic qubits is a challenging task for the implementation of distributed quantum information processing as well as for quantum communication. Using spin ensembles of rare-earth ions provides an excellent opportunity to bridge microwave and optical …