Coherent observer engineering for protecting quantum information

Abstract : In this paper, we extend the applicability of coherent quantum observers to enable the generation of decoherence free subsystem which can be used for quantum information storage. In particular, a general quantum linear passive system can be equipped with a decoherence free subsystem by placing some of its poles on the imaginary axis via engineered observer-based controller. The controller design for the case of optical cavity systems is illustrated in the context of examples.
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01398831
Contributor : Nina Amini <>
Submitted on : Thursday, November 17, 2016 - 6:40:08 PM
Last modification on : Thursday, April 5, 2018 - 12:30:25 PM

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Yu Pan, Thien Nguyen, Zibo Miao, Nina H. Amini, Valeri Ugrinovski, et al.. Coherent observer engineering for protecting quantum information. Chineese Control Conference (CCC), Jul 2016, Chengdu, China. ⟨10.1109/chicc.2016.7554812⟩. ⟨hal-01398831⟩

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