Coupling of an erbium spin ensemble to a superconducting resonator
Journal article, 2012

A quantum coherent interface between optical and microwave photons can be used as a basic building block within a future quantum information network. The interface is envisioned as an ensemble of rare-earth ions coupled to a superconducting resonator, allowing for coherent transfer between optical and microwave photons. Towards this end, we have realized a hybrid device coupling a Er3+-doped Y2SiO5 crystal in a superconducting coplanar waveguide cavity. We observe a collective spin coupling of 4 MHz and a spin linewidth of down to 75 MHz.

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Published in

Journal of Physics B: Atomic, Molecular and Optical Physics

0953-4075 (ISSN) 13616455 (eISSN)

Vol. 45Issue 12p. Art. no. 124019- art. no 124019

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Physical Sciences

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DOI

10.1088/0953-4075/45/12/124019

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4/5/2022 6