Abstract
In order to construct a theory for photon-assisted macroscopic quantum tunnelling (MQT) in intrinsic Josephson junctions, we revisit the model of capacitively coupled intrinsic Josephson junctions and clarify how the quantized energy levels in the N-junction stacked system distribute inside a valley of the Josephson sinusoidal potential. Furthermore, we reveal that the MQT escape rate from the single-plasmon states to the uniform voltage ones by microwave irradiation is proportional to the square of the junction number (N2) in multi-photon processes. This result is consistent with the recent finding in Bi-2212 intrinsic Josephson junctions by Jin et al 2006 Phys.Rev.Lett.96177003.
| Original language | English |
|---|---|
| Article number | S06 |
| Journal | Superconductor Science and Technology |
| Volume | 20 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2007 Feb 1 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
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Machida, M., & Koyama, T. (2007). Collective dynamics of macroscopic quantum tunnelling in layered high-Tc superconductors. Superconductor Science and Technology, 20(2), [S06]. https://doi.org/10.1088/0953-2048/20/2/S06