Reduced dynamics with renormalization in solid-state charge qubit measurement
Jun Yan Luo, HuJun Jiao, Feng Li +2 more
Quantum measurement will inevitably cause backaction on the measured system, resulting in the well-known dephasing and relaxation. In this paper, 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.
arXiv:0908.4197•Journal of Physics Condensed Matter•Aug 27, 2009•9 citations