The initial decoherence of the mesoscopic Josephson junction flux qubit |
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| Authors: | Su Jie Wang Ji-Suo Zhang Xiao-Yan Liang Bao-Long |
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| Affiliation: | School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252059, China |
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| Abstract: | ![]()
For a mesoscopic radio frequency superconducting quantuminterference device (rfSQUID), at a degeneracy point, the systemreduces to a quantum two-state system which can be used as a fluxqubit. When the noise environment is equivalent to a harmonicoscillators bath, by virtue of an operator-norm measure for theshort time decoherence, this paper investigates the initialdecoherence of the flux qubit operating in the ohmic noiseenvironment and illustrates its property by means of the numericalevaluation. |
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| Keywords: | mesoscopic rfSQUID flux qubit short-time decoherence |
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