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arXiv · 0908.4197

Reduced dynamics with renormalization in solid-state charge qubit measurement

JunYan Luo·Hujun Jiao·Feng Li·Xin-Qi Li·YiJing Yan
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Abstract

Quantum measurement will inevitably cause backaction on the measured system, resulting in the well known dephasing and relaxation. In this report, in the context of solid--state qubit measurement by a mesoscopic detector, we show that an alternative backaction known as renormalization is important under some circumstances. This effect is largely overlooked in the theory of quantum measurement.

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JunYan Luo, Hujun Jiao, Feng Li, Xin-Qi Li, YiJing Yan. 2009-08-28. Reduced dynamics with renormalization in solid-state charge qubit measurement. https://doi.org/10.1088/0953-8984%2F21%2F38%2F385801

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