Автор |
Shiro Kawabata |
Автор |
Takeo Kato |
Автор |
Thilo Bauch |
Дата выпуска |
2009-03-01 |
dc.description |
We investigate classical thermal activation (TA) and macroscopic quantum tunneling (MQT) for a Josephson junction coupled with an LC circuit theoretically. The TA and MQT escape rate are calculated analytically by taking into account the two-dimensional nature of the classical and quantum phase dynamics. We find that the MQT escape rate is largely suppressed by the coupling to the LC circuit. On the other hand, this coupling gives rise to slight reduction of the TA escape rate. These results are relevant for the interpretation of a recent experiment on the MQT and TA phenomena in grain boundary YBCO Josephson junctions. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Копирайт |
© 2009 IOP Publishing Ltd |
Название |
Theory of two-dimensional macroscopic quantum tunneling in a Josephson junction coupled with an LC circuit |
Тип |
paper |
DOI |
10.1088/1742-6596/150/5/052105 |
Electronic ISSN |
1742-6596 |
Print ISSN |
1742-6588 |
Журнал |
Journal of Physics: Conference Series |
Том |
150 |
Первая страница |
52105 |
Последняя страница |
52108 |
Выпуск |
5 |