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 | |
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