Quantum fluctuations and the universal c
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Behzad Mirhashem; Richard A. Ferrell
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Article
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1988
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Elsevier Science
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English
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A detailed treatment of the zero-temperature quantum fluctuations of a granular film, modeled by a regular lattice of Josephsoncoupled grains, is presented. For small grains, whose junction reactance is determined by virtual quasi-particle tunneling, mean field theory predicts a universal threshold