Skip to content

Ultrahigh finesse Fabry-Perot superconducting resonator

Stefan Kuhr, Sébastien Gleyzes, Christine Guerlin, Julien Bernu, Ulrich Busk Hoff, Samuel Deléglise, Stefano Osnaghi, Michel Brune, Jean-Michel Raimond, Serge Haroche, E. Jacques, P. Bosland, B. Visentin

quant-pharXiv:quant-ph/0612138

Abstract

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

Create a lesson