Anisotropic rare-earth spin ensemble strongly coupled to a superconducting resonator

Abstract

Interfacing photonic and solid-state qubits within a hybrid quantum architecture offers a promising route towards large scale distributed quantum computing. Ideal candidates for coherent qubit interconversion are optically active spins magnetically coupled to a superconducting resonator. We report on a cavity QED experiment with magnetically anisotropic Er3+:Y2SiO5 crystals and demonstrate strong coupling of rare-earth spins to a lumped element resonator. In addition, the electron spin resonance and relaxation dynamics of the erbium spins are detected via direct microwave absorption, without aid of a cavity.

References in corpus (12)

• The Quantum Internet
• An Elementary Quantum Network of Single Atoms in Optical Cavities
• Strong Coupling of a Spin Ensemble to a Superconducting Resonator
• Quantum Storage of Photonic Entanglement in a Crystal
• Opto-mechanical transducers for long-distance quantum communication
• Strong magnetic coupling of an ultracold gas to a superconducting waveguide cavity
• Electron spin ensemble strongly coupled to a three-dimensional microwave cavity
• Holographic quantum computing
• Spectroscopic properties of inhomogeneously broadened spin ensembles in a cavity
• Magnetic strong coupling in a spin-photon system and transition to classical regime
• Cavity QED with an ultracold ensemble on a chip: prospects for strong magnetic coupling at finite temperatures
• Unconventional rf photoresponse from a superconducting spiral resonator