Influence of measurement on the lifetime and the linewidth of unstable systems

@article{Elattari2000InfluenceOM,
  title={Influence of measurement on the lifetime and the linewidth of unstable systems},
  author={B. Elattari and S. A. Gurvitz},
  journal={Physical Review A},
  year={2000},
  volume={62},
  pages={032102}
}
We investigate the quantum Zeno effect in the case of electron tunneling out of a quantum dot in the presence of continuous monitoring by a detector. It is shown that the Schr\"odinger equation for the whole system can be reduced to Bloch-type rate equations describing the combined time development of the detector and the measured system. Using these equations we find that continuous measurement of the unstable system does not affect its exponential decay to a reservoir with a constant density… Expand

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