2011/03/17 by Alejandro M. Lobos, Thierry Giamarchi · 2 citations
Physics and Astronomy · #Bosonization #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Coulomb #Electrical resistivity and conductivity #Insulator (electricity) #Josephson effect #Materials science #Metal–insulator transition #Optoelectronics #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Renormalization #Renormalization group #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.84.024523
published as Phys. Rev. B 84, 024523 (2011) · 10 pages, 5 figures, submitted to Physical Review B
arxiv created 2011/03/17 · openalex publication_date 2011/07/21 · arxiv updated 2012/09/03 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the low-temperature properties of linear Josephson-junction arrays capacitively coupled to a proximate two-dimensional diffusive metal. Using bosonization techniques, we derive an effective model for the array and obtain its critical properties and phases at T=0 using a renormalization-group analysis and a variational approach. While static screening effects given by the presence of the metal can be absorbed in a renormalization of the parameters of the array, backscattering originated in the dynamically screened Coulomb interaction produces a nontrivial stabilization of the insulating ground state and can drive a superconductor-to-insulator transition. We study the consequences for the transport properties in the low-temperature regime. In particular, we calculate the resistivity as a function of the temperature and the parameters of the array, and obtain clear signatures of a superconductor-to-insulator transition that could be observed in experiments.