Superconductor-insulator transition in Josephson junction chains by quantum Monte Carlo calculations
Superconductor-insulator transition in Josephson junction chains by quantum Monte Carlo calculations
We study the zero-temperature phase diagram of a dissipationless and disorder-free Josephson junction chain. Namely, we determine the critical Josephson energy below which the chain becomes insulating, as a function of the ratio of two capacitances: the capacitance of each Josephson junction and the capacitance between each superconducting island and …