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arXiv · 1602.03026

Engineering and Suppression of Decoherence in Two Qubit Systems

Govind Unnikrishnan
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Abstract

In this work, two experimentally feasible methods of decoherence engineering-one based on the application of stochastic classical kicks and the other based on temporally randomized pulse sequences are combined. A different coupling interaction is proposed, which leads to amplitude damping as compared to existing methods which model phase damping, utilizing the $zz$ coupling interaction. The decoherence process on combining the stochastic kick method and the randomized pulse sequence method and the effectiveness of dynamical decoupling under these coupling interactions are analyzed. Finally, a counter-intuitive result where decoherence is suppressed in the presence of two noise sources under certain resonant conditions is presented.

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Govind Unnikrishnan. 2016-02-09. Engineering and Suppression of Decoherence in Two Qubit Systems. https://arxiv.org/abs/1602.03026

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