Charging effects in the inductively shunted josephson junction

Jens Koch*, V. Manucharyan, M. H. Devoret, L. I. Glazman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

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 gives 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.

Original languageEnglish (US)
Article number217004
JournalPhysical review letters
Volume103
Issue number21
DOIs
StatePublished - Nov 19 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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