Ultrahigh finesse Fabry-Pérot superconducting resonator

Kuhr, S. and Gleyzes, S. and Guerlin, C. and Bernu, J. and Hoff, U. B. and Deleglise, S. and Osnaghi, S. and Brune, M. and Raimond, J. -M. and Haroche, S. and Jacques, E. and Bosland, P. and Visentin, B. (2007) Ultrahigh finesse Fabry-Pérot superconducting resonator. Applied Physics Letters, 90 (16). 164101. ISSN 0003-6951

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Abstract

The authors have built a microwave Fabry-Perot resonator made of diamond-machined copper mirrors coated with superconducting niobium. Its damping time (T-c=130 ms at 51 GHz and 0.8 K) corresponds to a finesse of 4.6x10(9), the highest ever reached for a Fabry-Perot in any frequency range. This result opens many perspectives for quantum information processing, decoherence and nonlocality studies.

ORCID iDs

Kuhr, S. ORCID logoORCID: https://orcid.org/0000-0001-8386-5357, Gleyzes, S., Guerlin, C., Bernu, J., Hoff, U. B., Deleglise, S., Osnaghi, S., Brune, M., Raimond, J. -M., Haroche, S., Jacques, E., Bosland, P. and Visentin, B.;