Phase transitions in dissipative Josephson chains

P.A. Bobbert, R. Fazio, G. Schön, G.T. Zimanyi

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28 Citations (Scopus)
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The authors study the zero-temperature phase transitions of a chain of Josephson junctions, taking into account the quantum fluctuations due to the charging energy and the effects of an Ohmic dissipation. They map the problem onto a generalized Coulomb gas model, which then is transformed into a sine-Gordon field theory. Apart from the expected dipole unbinding transition, which describes a transition between globally superconducting and resistive behavior, they find a quadrupole unbinding transition at a critical strength of the dissipation. This transition separates two superconducting states characterized by different local properties
Original languageEnglish
Pages (from-to)4009-4016
Number of pages8
JournalPhysical Review B: Condensed Matter
Issue number7
Publication statusPublished - 1990


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