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Intrinsic Josephson junctions (IJJs) in the high-Tc cuprate superconductors have several fascinating properties, which are superior to the usual Josephson junctions obtained from conventional superconductors with low Tc, as follows; (1) a very thin thickness of the superconducting layers, (2) a strong interaction between junctions since neighboring junctions are closely connected in an atomic scale, (3) a clean interface between the superconducting and insulating layers, realized in a single crystal with few disorders. These unique properties of IJJs can enlarge the applicable areas of the superconducting qubits, not only the increase of qubit-operation temperature but the novel application of qubits including the macroscopic quantum states with internal degree of freedom. I present a comprehensive review of the phase dynamics in current-biased IJJs and argue the challenges of superconducting qubits utilizing IJJs.
Haruhisa KITANO
Aoyama Gakuin University
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Haruhisa KITANO, "Possibilities and Challenges of Superconducting Qubits in the Intrinsic Josephson Junctions" in IEICE TRANSACTIONS on Electronics,
vol. E106-C, no. 6, pp. 293-300, June 2023, doi: 10.1587/transele.2022SEI0002.
Abstract: Intrinsic Josephson junctions (IJJs) in the high-Tc cuprate superconductors have several fascinating properties, which are superior to the usual Josephson junctions obtained from conventional superconductors with low Tc, as follows; (1) a very thin thickness of the superconducting layers, (2) a strong interaction between junctions since neighboring junctions are closely connected in an atomic scale, (3) a clean interface between the superconducting and insulating layers, realized in a single crystal with few disorders. These unique properties of IJJs can enlarge the applicable areas of the superconducting qubits, not only the increase of qubit-operation temperature but the novel application of qubits including the macroscopic quantum states with internal degree of freedom. I present a comprehensive review of the phase dynamics in current-biased IJJs and argue the challenges of superconducting qubits utilizing IJJs.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2022SEI0002/_p
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@ARTICLE{e106-c_6_293,
author={Haruhisa KITANO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Possibilities and Challenges of Superconducting Qubits in the Intrinsic Josephson Junctions},
year={2023},
volume={E106-C},
number={6},
pages={293-300},
abstract={Intrinsic Josephson junctions (IJJs) in the high-Tc cuprate superconductors have several fascinating properties, which are superior to the usual Josephson junctions obtained from conventional superconductors with low Tc, as follows; (1) a very thin thickness of the superconducting layers, (2) a strong interaction between junctions since neighboring junctions are closely connected in an atomic scale, (3) a clean interface between the superconducting and insulating layers, realized in a single crystal with few disorders. These unique properties of IJJs can enlarge the applicable areas of the superconducting qubits, not only the increase of qubit-operation temperature but the novel application of qubits including the macroscopic quantum states with internal degree of freedom. I present a comprehensive review of the phase dynamics in current-biased IJJs and argue the challenges of superconducting qubits utilizing IJJs.},
keywords={},
doi={10.1587/transele.2022SEI0002},
ISSN={1745-1353},
month={June},}
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TY - JOUR
TI - Possibilities and Challenges of Superconducting Qubits in the Intrinsic Josephson Junctions
T2 - IEICE TRANSACTIONS on Electronics
SP - 293
EP - 300
AU - Haruhisa KITANO
PY - 2023
DO - 10.1587/transele.2022SEI0002
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E106-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2023
AB - Intrinsic Josephson junctions (IJJs) in the high-Tc cuprate superconductors have several fascinating properties, which are superior to the usual Josephson junctions obtained from conventional superconductors with low Tc, as follows; (1) a very thin thickness of the superconducting layers, (2) a strong interaction between junctions since neighboring junctions are closely connected in an atomic scale, (3) a clean interface between the superconducting and insulating layers, realized in a single crystal with few disorders. These unique properties of IJJs can enlarge the applicable areas of the superconducting qubits, not only the increase of qubit-operation temperature but the novel application of qubits including the macroscopic quantum states with internal degree of freedom. I present a comprehensive review of the phase dynamics in current-biased IJJs and argue the challenges of superconducting qubits utilizing IJJs.
ER -