Abstract
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 domains at the quantum level. In this Rapid Communication, we demonstrate the ultralow-power, on-chip, electron-spin-resonance spectroscopy of Er spins doped in a YSiO crystal using a high-, coplanar, superconducting resonator.
- Received 17 February 2011
DOI:https://doi.org/10.1103/PhysRevB.84.060501
©2011 American Physical Society