Modal analysis of the ultrahigh finesse Haroche QED cavity. (27th April 2018)

• Record Type: Journal Article
• Authors: Marsic, Nicolas; Gersem, Herbert De; Demésy, Guillaume; Nicolet, André; Geuzaine, Christophe
• Is Part Of: New journal of physics. Volume 20:Number 4(2018:Apr.)
• Publication Date: 2018-04-27
• Subjects: electromagnetism -- perfectly matched layer -- modal analysis -- quasinormal modes -- leaky modes -- cavity quantum electrodynamics -- high performance computing; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1367-2630/aab6fd
• Languages: English
• ISSNs: 1367-2630

Abstract

Abstract: In this paper, we study a high-order finite element approach to simulate an ultrahigh finesse Fabry–Pérot superconducting open resonator for cavity quantum electrodynamics. Because of its high quality factor, finding a numerically converged value of the damping time requires an extremely high spatial resolution. Therefore, the use of high-order simulation techniques appears appropriate. This paper considers idealized mirrors (no surface roughness and perfect geometry, just to cite a few hypotheses), and shows that under these assumptions, a damping time much higher than what is available in experimental measurements could be achieved. In addition, this work shows that both high-order discretizations of the governing equations and high-order representations of the curved geometry are mandatory for the computation of the damping time of such cavities.