Ultrahigh finesse Fabry-Pérot superconducting resonator

2006/12/31 by Stefan Kuhr, Sébastien Gleyzes, S. Gleyzes +19 · 9 citations
Computer Science · Physics and Astronomy · #Atomic and Subatomic Physics Research #Mechanical and Optical Resonators #Quantum Information and Cryptography #quant-ph

paper · pdf · doi:10.1063/1.2724816

published as Applied Physics Letters 90 (16/04/2007) 164101

openalex publication_date 2007/04/16 · arxiv created 2007/07/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The authors have built a microwave Fabry-Pérot resonator made of diamond-machined copper mirrors coated with superconducting niobium. Its damping time (Tc=130ms at 51GHz and 0.8K) corresponds to a finesse of 4.6×109, the highest ever reached for a Fabry-Pérot in any frequency range. This result opens many perspectives for quantum information processing, decoherence and nonlocality studies.

Citations

• Manipulating quantum entanglement with atoms and photons in a cavity

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