Abstract
Macroscopic quantum tunneling (MQT) of a discrete breather is investigated in a stack of capacitively-coupled intrinsic Josephson junctions. The quantum escape rate of a breather trapped in a false vacuum is derived within the instanton approximation. We predict the escape rate is enhanced by the capacitive coupling between junctions.
Original language | English |
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Pages (from-to) | 1321-1322 |
Number of pages | 2 |
Journal | Physica C: Superconductivity and its applications |
Volume | 460-462 II |
Issue number | SPEC. ISS. |
DOIs | |
Publication status | Published - 2007 Sep 1 |
Keywords
- Discrete breather
- Intrinsic Josephson junctions
- Macroscopic quantum tunneling
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering