Presentation 2006-01-27
Macroscopic Quantum Tunneling in Bi2212 Intrinsic Josephson Junctions
Kunihiro INOMATA, Shigeo SATO, Yuuki NAKAMIYA, Mitsunaga KINJO, Huabing WANG, Takeshi HATANO, Koji NAKAJIMA,
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Abstract(in English) It has been known that dissipation with quasi particles originated from the geometrical property of superconducting gap in high Tc superconductors may hinder the emergence of its quantum property. However, its successful observations have been reported recently. In this report, we show that the macroscopic quantum tunneling in Bi2212 intrinsic Josephson junctions. The critical temperature, at which quantum property emerges, is ten times higher than that of metallic superconductors. These results indicate the possibility for implementing qubits with high Tc superconductors.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Macroscopic Quantum Tunneling (MQT) / Josephson junction / superconducting phase qubit
Paper # SCE2005-26
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Committee SCE
Conference Date 2006/1/20(1days)
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Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Macroscopic Quantum Tunneling in Bi2212 Intrinsic Josephson Junctions
Sub Title (in English)
Keyword(1) Macroscopic Quantum Tunneling (MQT)
Keyword(2) Josephson junction
Keyword(3) superconducting phase qubit
1st Author's Name Kunihiro INOMATA
1st Author's Affiliation Frontier Research System, RIKEN()
2nd Author's Name Shigeo SATO
2nd Author's Affiliation RIEC, Tohoku University
3rd Author's Name Yuuki NAKAMIYA
3rd Author's Affiliation RIEC, Tohoku University
4th Author's Name Mitsunaga KINJO
4th Author's Affiliation RIEC, Tohoku University
5th Author's Name Huabing WANG
5th Author's Affiliation ICYS, National Institute for Materials Science
6th Author's Name Takeshi HATANO
6th Author's Affiliation Nanomaterials Laboratory, National Institute for Materials Science
7th Author's Name Koji NAKAJIMA
7th Author's Affiliation RIEC, Tohoku University
Date 2006-01-27
Paper # SCE2005-26
Volume (vol) vol.105
Number (no) 575
Page pp.pp.-
#Pages 6
Date of Issue