2003/02/28 by Minchul Lee, Mahn-Soo Choi, M. Y. Choi
Physics and Astronomy · #Charge (physics) #Condensed matter physics #Density matrix renormalization group #Josephson effect #Magnetic field #Magnetic flux #Physics #Physics of Superconductivity and Magnetism #Pi Josephson junction #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Semiconductor Quantum Structures and Devices #Superconductivity #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.68.144506
To appear in Phys. Rev. B; title has been changed; a few parts of the text have been change; 12 pages, 17 figures
arxiv created 2003/06/16 · openalex publication_date 2003/10/06 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this work we study quantum phase transitions and persistent currents in capacitively coupled one-dimensional Josephson-junction arrays. We will focus particularly on the roles of excitonlike pairs in the strong-coupling limit in the presence of external gate charges and magnetic fluxes. We use the numerical density-matrix renormalization group method for the study in the full range of values of gate charge and magnetic flux. To clarify the various effects, we report the pair correlation functions and exciton densities as well as the persistent current.