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Quantum behaviors in high-TC systems: Macroscopic and vortex quantum tunneling

โœ Scribed by F. Tafuri; F. Lombardi; T. Bauch; D. Stornaiuolo; D. Born; D. Dalena; A. Barone; G. Rotoli; P.G. Medaglia; P. Orgiani; G. Balestrino; V. Kogan; J.R. Kirtley

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
281 KB
Volume
437-438
Category
Article
ISSN
0921-4534

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Macroscopic quantum tunneling and thermal activation in dc SQUID
โœ F. Sharifi; J.L. Gavilano; D.J. Van Harlingen ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 158 KB

We have studied the transition rate from the zero-voltage state in a dc SQUID as a function of applied flux and temperature. We observe a crossover from thermal activation to macroscopic quantum tunneling at a flux-dependent temperature. The thermal rates are significantly suppressed, suggesting tha