Yuan Kang

Cryogenic interface state modeling workflow for Ge/SiGe quantum-well devices

Jingrui Ma, Yuan Kang, Rui Wu, Zheng Liu et autres

Abstract Traps at the semiconductor-oxide interface are considered as a major source of instability in semiconductor quantum devices, yet the quantified study of their cryogenic behavior remains limited. In this work, we introduce a transferrable workflow to model the impact of interface …

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Coupling between a Si/SiGe Resonant Exchange Qubit and a High-Impedance Microwave Resonator

Shun-Li Jiang, Tian-Yi Jiang, Shu-Kun Ye, Ranran Cai et autres

Coherent spin-photon coupling is believed to play a significant role in silicon-based quantum computation. The resonant exchange (RX) qubit, formed in a triple quantum dot, is a promising platform for spin-photon coupling and qubit scaling due to the large electric dipole moment …

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An on-chip compact Chebyshev filter for semiconductor quantum dots in cQED architecture

Ze-Cheng Wei, Song-Yan Deng, Yuan Kang, Zong-Hu Li et autres

Circuit quantum electrodynamics (cQED) architecture enables long-range qubit coupling and nondemolition readout, with a key requirement of a small resonator photon leakage rate, κ. Several types of low-pass on-chip LC filter designs have been proposed to mitigate κ. However, the non-flat frequency …

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Coupling of a hole double quantum dot in planar germanium to a microwave cavity

Yuan Kang, Zong-Hu Li, Zhenzhen Kong, Fang-Ge Li et autres

In recent years, notable progress has been made in the study of hole qubits in planar germanium, and circuit quantum electrodynamics (circuit QED) has emerged as a promising approach for achieving long-range coupling and scaling up of qubits. Here, we demonstrate the …

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Coupling of hole double quantum dot in planar germanium to a microwave cavity

Yuan Kang, Zong-Hu Li, Zhenzhen Kong, Fang-Ge Li et autres

In recent years, notable progress has been made in the study of hole qubits in planar germanium, and circuit quantum electrodynamics (circuit QED) has emerged as a promising approach for achieving long-range coupling and scaling up of qubits. Here, we demonstrate the …

Front Cover: Characterization of a Triple Quantum Dot via an On‐chip Microwave Resonator (Adv. Quantum Technol. 2/2022)

Si‐Si Gu, Bao‐Chuan Wang, Mingbo Chen, Ting Chun Lin et autres

Circuit quantum electrodynamics architecture provides a controllable artificial system and enriches the physics with the participation of electron-photon interaction. The cover shows this hybrid architecture comprised of a superconducting microwave resonator and a triple quantum dot. In article number 2100104, Si-Si Gu …

Characterization of a Triple Quantum Dot via an On‐chip Microwave Resonator

Si‐Si Gu, Bao‐Chuan Wang, Mingbo Chen, Ting Chun Lin et autres

Abstract The hybrid circuit quantum electrodynamics architecture integrated quantum dots with a microwave resonator results in the creation of a controllable artificial system and enriches its physics through electron–photon interaction. In this study, a hybrid device is investigated, wherein a triple quantum …

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Floquet state depletion in ac-driven circuit QED

Mingbo Chen, Bao‐Chuan Wang, Sigmund Kohler, Yuan Kang et autres

We perform Floquet spectroscopy in a GaAs double quantum dot system coupled to a high-impedance superconducting resonator. By applying microwave-induced consecutive passages under a double-resonance condition, we observe Landau-Zener-St\"uckelberg-Majorana interference patterns that stem from a cavity-assisted interference pattern modified by the depletion …

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Double Resonance Landau-Zener-St\"uckelburg-Majorana Interference in Circuit QED

Mingbo Chen, Bao‐Chuan Wang, Sigmund Kohler, Yuan Kang et autres

We report on Floquet spectroscopy in a cavity-coupled double quantum dot system. By applying microwave induced consecutive passages, we observe Landau-Zener-Stuckelberg-Majorana fringes which are split by holes with the shape of crescents. We demonstrate that these crescents represent a universal feature that …

A Pt/TiO2Nanotube Array Electrode for Glucose Detection and Its Photoelectrocatalysis Self-Cleaning Ability

Jian Chen, Yuan Kang, Can Li, Hui Chen et autres

A non-enzymatic amperometric glucose sensor was prepared based on Pt-decorated TiO 2 nanotube array (NTA). TiO 2 NTA was obtained through anodization, and Pt nanoparticles were loaded onto the TiO 2 NTA by ion exchange. The prepared electrode exhibited a decent sensitivity …

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Robust 3-Metallization BEOL Process for 0.18 μm Embedded FRAM

S.K. Kang, H.S. Rhie, H.H. Kim, Bon Jin Koo et autres