Resonance fluorescence spectra of a driven Kerr nonlinear resonator
Abstract
Resonance fluorescence spectra of a driven Kerr nonlinear resonator is investigated both theoretically and experimentally. When the Kerr nonlinear resonator is driven strongly such that the induced Rabi frequency is comparable to or larger than the Kerr nonlinearity, the system cannot be approximated as a two-level system. We theoretically derive characteristic features in the fluorescence spectra such as the decrease of the center-peak intensity and the asymmetric sideband peaks in the presence of finite dephasing. Those features are consistently explained by the population of the initial dressed state and its transition matrix element to the final dressed state of the transition corresponding to each peak. Finally, we experimentally measure the resonance fluorescence spectra of a driven superconducting Kerr nonlinear resonator and find a quantitative agreement with our theory.
Keywords
Cite
@article{arxiv.2501.02823,
title = {Resonance fluorescence spectra of a driven Kerr nonlinear resonator},
author = {Aree Taguchi and Katsuta Sakai and Aiko Yamaguchi and Yuya Kano and Yohei Kawakami and Tomohiro Yamaji and Tetsuro Satoh and Ayuka Morioka and Kiyotaka Endou and Yuichi Igarashi and Masayuki Shirane and Yasunobu Nakamura and Kazuki Koshino and Tsuyoshi Yamamoto},
journal= {arXiv preprint arXiv:2501.02823},
year = {2025}
}
Comments
18 pages, 10 figures