%0 Journal Article
%T The initial decoherence of the mesoscopic Josephson junction flux qubit<br>
%A Su Jie
%A Wang Ji-Suo
%A Zhang Xiao-Yan
%A Liang Bao-Long
%A <br>
%J 中国物理 B
%D 2010
%I 
%X For a mesoscopic radio frequency superconducting quantum interference device (rfSQUID), at a degeneracy point, the system reduces to a quantum two-state system which can be used as a flux qubit. When the noise environment is equivalent to a harmonic oscillators bath, by virtue of an operator-norm measure for the short time decoherence, this paper investigates the initial decoherence of the flux qubit operating in the ohmic noise environment and illustrates its property by means of the numerical evaluation.
%K mesoscopic rfSQUID
%K flux qubit
%K short-time decoherence<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=FF41C2BF8DFDDB321211290061A5C407&yid=140ECF96957D60B2&vid=2A8D03AD8076A2E3&iid=94C357A881DFC066&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=17