Open AccessКвантовая динамика заряда в квазиодномерных сверхпроводниках
Author(s) -
Я.С. Лехтинен,
Boris G. Lvov,
К.Ю. Арутюнов
Publication year - 2018
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.11.46645.04nn
Subject(s) - condensed matter physics , coulomb blockade , josephson effect , superconductivity , physics , coulomb , pi josephson junction , quantum , phase (matter) , charge (physics) , quantum mechanics , voltage , electron , transistor
—Volt-ampere characteristics of narrow superconducting titanum wires have been studied experimentally. The narrowest specimens measured by means of high-resistance contacts have revealed a behavior nontrivial for superconductors: the Coulomb blockade. The Coulomb gap size correlates with the frequency of quantum phase slips. The observation confirms the identity of quantum dynamics of charge in the Josephson junctions and in the quasi-one-dimensional superconducting channels in the regime of quantum fluctuations of the order parameter.