Onset of Global Phase Coherence in Josephson-Junction Arrays: A Dissipative Phase Transition

• DOI: 10.1103/physrevlett.56.2303
• Publication Date: 2002-07-27T01:13:58Z
• Authors: Sudip Chakravarty; Gert-Ludwig Ingold; Steven Kivelson; Alan Luther
• Keywords: Phase coherence

A theoretical analysis is presented of the problem onset global phase coherence in granular superconductors and Josephson-junction arrays. It shown that ratio $\frac{(\frac{h}{{e}^{2}})}{R}$, where $R$ resistance, plays an important role thermodynamics. This due to quantum fluctuations order parameter occurs superconductivity only because both a statistical as well dynamical variable. The theory provides natural qualitative explanation recent experiments Orr, Jaeger, Goldman, Kuper.