Charging effects in the inductively shunted Josephson junction
Mesoscale and Nanoscale Physics
2010-07-21 v2 Superconductivity
Abstract
The choice of impedance used to shunt a Josephson junction determines if the charge transferred through the circuit is quantized: a capacitive shunt renders the charge discrete, whereas an inductive shunt leads to continuous charge. This discrepancy leads to a paradox in the limit of large inductances L. We show that while the energy spectra of the capacitively and inductively shunted junction are vastly different, their high-frequency responses become identical for large L. Inductive shunting thus opens the possibility to observe charging effects unimpeded by charge noise.
Keywords
Cite
@article{arxiv.0902.2980,
title = {Charging effects in the inductively shunted Josephson junction},
author = {Jens Koch and V. Manucharyan and M. H. Devoret and L. I. Glazman},
journal= {arXiv preprint arXiv:0902.2980},
year = {2010}
}
Comments
4+ pages, 4 figures; revised introduction and fig. 1; version accepted for publication in Phys. Rev. Lett