Macroscopic quantum tunneling and resonant activation of current biased intrinsic Josephson junctions in Bi-2212

Shigeo Sato; Kunihiro Inomata; Mitsunaga Kinjo; Nobuhiro Kitabatake; Koji Nakajima; Huabing Wang; Takeshi Hatano

doi:10.1093/ietele/e90-c.3.599

Macroscopic quantum tunneling and resonant activation of current biased intrinsic Josephson junctions in Bi-2212

Shigeo Sato, Kunihiro Inomata, Mitsunaga Kinjo, Nobuhiro Kitabatake, Koji Nakajima, Huabing Wang, Takeshi Hatano

Information Devices Division

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The utilization of a high-Tc superconductor for implementing a superconducting qubit is to be expected. Recent researches on the quantum property of Josephson junctions in high-Tc superconductors indicate that the low energy quasiparticle excitation is weak enough to observe the macroscopic quantum tunneling. Therefore, a detailed study on the quantum property of high-Tc Josephson junctions becomes more important for applications. We show our experimental results of the macroscopic tunneling of current biased intrinsic Josephson junctions in Bi-2212 and its resonant activation in the presence of microwave radiation.

Original language	English
Pages (from-to)	599-604
Number of pages	6
Journal	IEICE Transactions on Electronics
Volume	E90-C
Issue number	3
DOIs	https://doi.org/10.1093/ietele/e90-c.3.599
Publication status	Published - 2007 Mar

Keywords

High-Tc superconductor
Josephson junction
Macroscopic quantum tunneling
Qubit
Resonant activation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1093/ietele/e90-c.3.599

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Macroscopic quantum tunneling and resonant activation of current biased intrinsic Josephson junctions in Bi-2212. / Sato, Shigeo; Inomata, Kunihiro; Kinjo, Mitsunaga; Kitabatake, Nobuhiro; Nakajima, Koji; Wang, Huabing; Hatano, Takeshi.

In: IEICE Transactions on Electronics, Vol. E90-C, No. 3, 03.2007, p. 599-604.

Research output: Contribution to journal › Article › peer-review

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