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Quantum dissipative dynamics in nanostructure d-wave Josephson junctions

✍ Scribed by Shiro Kawabata; Alexander A. Golubov; Yukio Tanaka; Satoshi Kashiwaya

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
149 KB
Volume
460-462
Category
Article
ISSN
0921-4534

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✦ Synopsis

The macroscopic quantum dynamics of nano-scale high-T c superconductor Josephson junctions is investigated theoretically. We analytically obtained the macroscopic quantum tunneling (MQT) rate and showed that the presence of the zero energy bound states at the interface leads to a strong damping effect.

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✍ T.P. Polak; T.K. KopeΔ‡ πŸ“‚ Article πŸ“… 2007 πŸ› Elsevier Science 🌐 English βš– 231 KB

We discuss the local and nonlocal dissipation effects on the existence of the global phase coherence transitions in two-dimensional Josephson-coupled junctions. The quantum phase transitions are also examined for various lattice geometries: square, triangular and honeycomb. The T = 0 superconductor-