Effect of zero energy bound states on macroscopic quantum tunneling in high-Tc superconductor junctions
Superconductivity
2009-11-11 v2 Mesoscale and Nanoscale Physics
Strongly Correlated Electrons
Quantum Physics
Abstract
The macroscopic quantum tunneling (MQT) in the current biased high-Tc superconductor Josephson junctions and the effect of the zero energy bound states (ZES) on the MQT are theoretically investigated. We obtained the analytical formula of the MQT rate and showed that the presence of the ZES at the normal/superconductor interface leads to a strong Ohmic quasiparticle dissipation. Therefore, the MQT rate is noticeably inhibited in compared with the c-axis junctions in which the ZES are completely absent.
Keywords
Cite
@article{arxiv.cond-mat/0501358,
title = {Effect of zero energy bound states on macroscopic quantum tunneling in high-Tc superconductor junctions},
author = {Shiro Kawabata and Satoshi Kashiwaya and Yasuhiro Asano and Yukio Tanaka},
journal= {arXiv preprint arXiv:cond-mat/0501358},
year = {2009}
}
Comments
4 pages, 1 figure, comment and reference about recent experiment added