119 citations · 292 across the 7 of their papers we have counts for
7 papers
Observation and manipulation of quantum interference in a superconducting Kerr parametric oscillator
Daisuke Iyama, Takahiko Kamiya, Shiori Fujii +9
Quantum tunneling is the phenomenon that makes superconducting circuits "quantum". Recently, there has been a renewed interest in using quantum tunneling in phase space of a Kerr p…
Autonomous Quantum Error Correction in a Four-Photon Kerr Parametric Oscillator
Sangil Kwon, Shohei Watabe, Jaw-Shen Tsai
Autonomous quantum error correction has gained considerable attention to avoid complicated measurements and feedback. Despite its simplicity compared with the conventional measurem…
Tutorial: Gate-based superconducting quantum computing
Sangil Kwon, Akiyoshi Tomonaga, Gopika Lakshmi Bhai +2
In this tutorial, we introduce basic conceptual elements to understand and build a gate-based superconducting quantum computing system.
Magnetic hysteresis of a superconducting microstrip resonator with a high edge barrier
Sangil Kwon, Yong-Chao Tang, Hamid R. Mohebbi +2
We investigate the magnetic hysteresis of a superconducting microstrip resonator with a high edge barrier. We measure the magnetic hysteresis while either sweeping a magnetic field…
Engineering Nonlinear Response of Superconducting Niobium Microstrip Resonators via Aluminum Cladding
Sangil Kwon, Yong-Chao Tang, Hamid R. Mohebbi +3
In this work, we find that Al cladding on Nb microstrip resonators is an efficient way to suppress nonlinear responses induced by local Joule heating, resulting in improved microwa…
Magnetic Field Dependent Microwave Losses in Superconducting Niobium Microstrip Resonators
Sangil Kwon, Anita Fadavi Roudsari, Olaf W. B. Benningshof +8
We describe an experimental protocol to characterize magnetic field dependent microwave losses in superconducting niobium microstrip resonators. Our approach provides a unified vie…
Electrical control of large magnetization reversal in a helimagnet
Yi Sheng Chai, Sangil Kwon, Sae Hwan Chun +4
In spite of both technical and fundamental importance, reversal of a macroscopic magnetization by an electric field (E) has been limitedly realized and remains as one of great chal…