Can I read Quantum Phase Transitions in Josephson Junction Chains on EtoBox?

Quantum Phase Transitions in Josephson Junction Chains by Choi, Mahn-Soo; Yi, J.; Choi, M. Y.; Choi, J.; Lee, S. -I. is a scholarly article available to read on EtoBox.

What is Quantum Phase Transitions in Josephson Junction Chains about?

We investigate the quantum phase transition in a one-dimensional chain of ultra-small superconducting grains, considering both the self- and junction capacitances. At zero temperature, the system is transformed into a two-dimensional system of classical vortices, where the junction capacitance introduces anisotropy in the interaction between vortices. This leads to the superconductor-insulator transition of the Berezinskii-Kosterlitz-Thouless type, as the ratios of the Josephson coupling energy to the charging energies are varied. It is found that the junction capacitance plays a role similar to that of dissipation and tends to suppress quantum fluctuations; nevertheless the insulator region survives even for arbitrarily large values of the junction capacitance.

Author

Choi, Mahn-Soo; Yi, J.; Choi, M. Y.; Choi, J.; Lee, S. -I.

Published

1997

Language

EN