Chinese Journal of Quantum Electronics, Volume. 29, Issue 6, 714(2012)

Mutual inductance’s influence on flux qubits decoherence under super-Ohm thermal reservoir environment

Xiong ZOU1、*, Bin-bin FENG1, and Ying-hua JI1,2
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  • 1[in Chinese]
  • 2[in Chinese]
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    Using two-level approximation with the Bloch-Redfield equation, the flux quantum qubit decoherence was investigated in superconducting qubit circuit affected by the mutual inductance’s influence under super-Ohm thermal reservoir environment. The results show that, firstly under the super-Ohm thermal reservoir environment, the improvement of the environmental indicator coefficient can help to extend the decoherence time of the superconducting flux qubits, thus improving the magnetic flux qubits decoherence. Secondly, building super-Ohm thermal reservoir environment can improve the solid-state qubit decoherence. Finally, the effects of the mutual inductance coupling between the inductive elements on quantum circuit system’s decoherence are more complicate, good regulation of the mutual inductance between the inductive coupling elements can help to improve the decoherence time.

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    ZOU Xiong, FENG Bin-bin, JI Ying-hua. Mutual inductance’s influence on flux qubits decoherence under super-Ohm thermal reservoir environment[J]. Chinese Journal of Quantum Electronics, 2012, 29(6): 714

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    Paper Information

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    Received: Nov. 10, 2011

    Accepted: --

    Published Online: Nov. 29, 2012

    The Author Email: Xiong ZOU (sean1986@163.com)

    DOI:10.3969/j.issn.1007-5461.2012.06.010

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