Search Results - "Choi, Gahyun"

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  1. 1

    Information flow among stocks, bonds, and convertible bonds by Jo, Kihwan, Choi, Gahyun, Jeong, Jongwook, Ahn, Kwangwon

    Published in PloS one (23-03-2023)
    “…This study examines the information flow between convertible bonds (CBs) and other investment assets, such as stocks and bonds. In particular, we employ…”
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    Journal Article
  2. 2

    Characterization of broadband Purcell filters with compact footprint for fast multiplexed superconducting qubit readout by Park, Seong Hyeon, Choi, Gahyun, Kim, Gyunghun, Jo, Jaehyeong, Lee, Bumsung, Kim, Geonyoung, Park, Kibog, Lee, Yong-Ho, Hahn, Seungyong

    Published in Applied physics letters (22-01-2024)
    “…Engineering the admittance of external environments connected to superconducting qubits is essential, as increasing the measurement speed introduces…”
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    Journal Article
  3. 3

    Optical and Raman spectroscopies of 171Yb3+:Y2SiO5 hyperfine structure for application toward microwave-to-optical transducer by Lim, Hee-Jin, Choi, Gahyun, Hong, KeeSuk

    “…This study analyzed the optical techniques for high-resolution, low-noise spectroscopy of a hyperfine structure (HFS) made of ytterbium-isotope-171 ion ( 171…”
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    Journal Article
  4. 4

    Schottky barrier modulation of metal/4H-SiC junction with thin interface spacer driven by surface polarization charge on 4H-SiC substrate by Choi, Gahyun, Yoon, Hoon Hahn, Jung, Sungchul, Jeon, Youngeun, Lee, Jung Yong, Bahng, Wook, Park, Kibog

    Published in Applied physics letters (21-12-2015)
    “…The Au/Ni/Al2O3/4H-SiC junction with the Al2O3 film as a thin spacer layer was found to show the electrical characteristics of a typical rectifying Schottky…”
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    Journal Article
  5. 5

    Analysis of Eddy-Current Probe Signals in Steam Generator U-Bend Tubes Using the Finite Element Method by Oh, Sebeom, Choi, Gahyun, Lee, Deokhyun, Choi, Myungsik, Kim, Kyungmo

    Published in Applied sciences (01-01-2021)
    “…To ensure the integrity and safety of steam generator tubes in nuclear power plants, eddy-current testing is periodically employed. Because steam generators…”
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    Journal Article
  6. 6

    Largely‐Tuned Effective Work‐Function of Al/Graphene/SiO2/Si Junction with Electric Dipole Layer at Al/Graphene Interface by Song, Wonho, Lee, Jung‐Yong, Kim, Junhyung, Park, Jinyoung, Jo, Jaehyeong, Hyun, Eunseok, Kim, Jiwan, Park, Hyunjae, Eom, Daejin, Choi, Gahyun, Park, Kibog

    Published in Advanced electronic materials (01-11-2024)
    “…The effective work‐function of metal electrode is one of the major factors to determine the threshold voltage of metal/oxide/semiconductor junction. In this…”
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    Journal Article
  7. 7

    Observation of a Strongly Enhanced Relaxation Time of an In-situ Tunable Transmon on a Silicon Substrate up to the Purcell Limit Approaching 100 μs by Park, Gwanyeol, Choi, Gahyun, Choi, Jisoo, Choi, Jiman, Lee, Soon-Gul, Lee, Kwan-Woo, Song, Woon, Chong, Yonuk

    Published in Journal of the Korean Physical Society (01-06-2020)
    “…The remarkable advances of quantum computation technology with superconducting qubits based on circuit quantum electrodynamics (QED) architecture have been…”
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    Journal Article
  8. 8

    Price fairness: Clean energy stocks and the overall market by Choi, Gahyun, Park, Kwangyeol, Yi, Eojin, Ahn, Kwangwon

    Published in Chaos, solitons and fractals (01-03-2023)
    “…This study analyzes the current status and potential of clean energy stocks compared with the overall stock market index, particularly in terms of market…”
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    Journal Article
  9. 9

    How the COVID-19 pandemic changed travel behaviour? A case study on public bikes in Seoul by Goh, Hyewon, Choi, Gahyun, Song, Yena

    Published in Research in transportation economics (01-11-2023)
    “…This study aims to examine how travel behaviour has changed after the COVID-19 outbreak, specifically focusing on the use of public bikes in Seoul. In January…”
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    Journal Article
  10. 10

    A study on the microstructure and power generation performance of colored BIPV modules by Song, Min Ji, Yoon, Ha Eun, Choi, Gahyun, Jung, Yong Chan, Lee, Soo Yeol

    Published in Renewable energy (01-12-2024)
    “…The need for greenhouse gas reduction and carbon neutrality is increasing, and the Building Integrated Photovoltaic (BIPV) power generation system is emerging…”
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    Journal Article
  11. 11

    Flux-driven Josephson Parametric Amplifier Fabricated Using the Nb/AlOx/Nb Trilayer Process by Choi, Gahyun, Kim, Bokyung, Choi, Jiman, Park, Kibog, Chong, Yonuk, Lee, Yong-Ho

    “…In this paper, we report a flux-driven Josephson par-ametric amplifier (JPA) fabricated using the Nb/AlOx/Nb Josephson junction process. The JPA consists of a…”
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    Journal Article
  12. 12

    Flux-Driven Josephson Parametric Amplifier Fabricated Using the Nb/AlO x /Nb Trilayer Process by Choi, Gahyun, Kim, Bokyung, Choi, Jiman, Park, Kibog, Chong, Yonuk, Lee, Yong-Ho

    “…In this paper, we report a flux-driven Josephson parametric amplifier (JPA) fabricated using the Nb/AlOx/Nb Josephson junction process. The JPA consists of a…”
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    Journal Article
  13. 13

    Information flow among stocks, bonds, and convertible bonds by Kihwan Jo, Gahyun Choi, Jongwook Jeong, Kwangwon Ahn

    Published in PloS one (01-01-2023)
    “…This study examines the information flow between convertible bonds (CBs) and other investment assets, such as stocks and bonds. In particular, we employ…”
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    Journal Article
  14. 14

    Negative Fermi-Level Pinning Effect of Metal/n-GaAs(001) Junction Induced by a Graphene Interlayer by Yoon, Hoon Hahn, Song, Wonho, Jung, Sungchul, Kim, Junhyung, Mo, Kyuhyung, Choi, Gahyun, Jeong, Hu Young, Lee, Jong Hoon, Park, Kibog

    Published in ACS applied materials & interfaces (18-12-2019)
    “…It is demonstrated that the electric dipole layer due to the overlapping of electron wave functions at the metal/graphene contact results in a negative…”
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    Journal Article
  15. 15

    High-fidelity Multiplexed Single-shot Readout for Transmon Qubits with High-power Measurement by Yeo, Hwan-Seop, Woo, Seungwook, Kim, Jeongwon, Kim, Youngdu, Choi, Beomgyu, Choi, Gahyun, Choi, Jiman, Lee, Sun Kyung, Song, Woon, Chong, Yonuk

    “…Single-shot readout of a quantum state is an essential component in building a large-scale quantum processor, andreduc-ing the readout error is the key…”
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    Journal Article
  16. 16

    Strong Fermi-Level Pinning at Metal/n-Si(001) Interface Ensured by Forming an Intact Schottky Contact with a Graphene Insertion Layer by Yoon, Hoon Hahn, Jung, Sungchul, Choi, Gahyun, Kim, Junhyung, Jeon, Youngeun, Kim, Yong Soo, Jeong, Hu Young, Kim, Kwanpyo, Kwon, Soon-Yong, Park, Kibog

    Published in Nano letters (11-01-2017)
    “…We report the systematic experimental studies demonstrating that a graphene layer inserted at metal/n-Si(001) interface is efficient to explore interface…”
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    Journal Article
  17. 17

    Largely‐Tuned Effective Work‐Function of Al/Graphene/SiO 2 /Si Junction with Electric Dipole Layer at Al/Graphene Interface by Song, Wonho, Lee, Jung‐Yong, Kim, Junhyung, Park, Jinyoung, Jo, Jaehyeong, Hyun, Eunseok, Kim, Jiwan, Park, Hyunjae, Eom, Daejin, Choi, Gahyun, Park, Kibog

    Published in Advanced electronic materials (01-11-2024)
    “…The effective work‐function of metal electrode is one of the major factors to determine the threshold voltage of metal/oxide/semiconductor junction. In this…”
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    Journal Article
  18. 18

    Multi-Level Capacitive Memory Effect in Metal/Oxide/Floating-Schottky Junction by Choi, Gahyun, Yoon, Hoon Hahn, Park, Kibog, Kim, Junhyung, Jung, Sungchul, Chong, Yonuk

    Published in Journal of the Korean Physical Society (01-05-2019)
    “…We experimentally demonstrate that metal/oxide/floating-Schottky junction has multiple effective capacitances depending on the amount of electrons stored in…”
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    Journal Article
  19. 19

    A 5.5mW/Channel 2-to-7 GHz Frequency Synthesizable Qubit-Controlling Cryogenic Pulse Modulator for Scalable Quantum Computers by Kang, Kiseo, Kim, ByungJun, Choi, Gahyun, Lee, Sun-Kyung, Choi, Jisoo, Lee, Jaeho, Kang, Seokhyeong, Lee, Moonjoo, Song, Ho-Jin, Chong, Yonuk, Sim, Jae-Yoon

    Published in 2021 Symposium on VLSI Technology (13-06-2021)
    “…This work presents a qubit controller IC based on the direct synthesis. The IC consists of six independently-working pulse modulators utilizing the same LO…”
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    Conference Proceeding
  20. 20

    Improving the accuracy of circuit quantization using the electromagnetic properties of superconductors by Park, Seong Hyeon, Choi, Gahyun, Kim, Eunjong, Park, Gwanyeol, Choi, Jisoo, Choi, Jiman, Chong, Yonuk, Lee, Yong-Ho, Hahn, Seungyong

    Published 31-10-2024
    “…Recent advances in quantum information processing with superconducting qubits have fueled a growing demand for scaling and miniaturizing circuit layouts…”
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    Journal Article