223 citations · 1.6k across the 42 of their papers we have counts for
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quant-ph2021★ 9 cited
Deterministic three-photon down-conversion by a passive ultrastrong cavity-QED system
Kazuki Koshino, Tomohiro Shitara, Ziqiao Ao +1
In ultra- and deep-strong cavity quantum electrodynamics (QED) systems, many intriguing phenomena that do not conserve the excitation number are expected to occur. In this study, w…
quant-ph2021
Elliptical rotation of cavity amplitude in ultrastrong waveguide QED
Kazuki Koshino
We investigate optical response of a linear waveguide quantum electrodynamics (QED) system, namely, an optical cavity coupled to a waveguide. Our analysis is based on exact diagona…