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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 7, Iss. 1 — Jan. 1, 2009
  • pp: 78–81

Effect of mutual inductance coupling on superconducting flux qubit decoherence

Yanyan Jiang, Hualan Xu, and Yinghua Ji  »View Author Affiliations


Chinese Optics Letters, Vol. 7, Issue 1, pp. 78-81 (2009)


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Abstract

In the Born-Markov approximation and two-level approximation, and using the Bloch-Redfield equation, the decoherence property of superconducting quantum circuit with a flux qubit is investigated. The influence on decoherence of the mutual inductance coupling between the circuit components is complicated. The mutual inductance coupling between different loops will decrease the decoherence time. However, the mutual inductance coupling of the same loop, in a certain interval, will increase the decoherence time. Therefore, we can control the decoherence time by changing the mutual inductance parameters such as the strength and direction of coupling.

© 2009 Chinese Optics Letters

OCIS Codes
(000.6800) General : Theoretical physics
(270.0270) Quantum optics : Quantum optics

Citation
Yanyan Jiang, Hualan Xu, and Yinghua Ji, "Effect of mutual inductance coupling on superconducting flux qubit decoherence," Chin. Opt. Lett. 7, 78-81 (2009)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-7-1-78

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