The role of system–meter entanglement in controlling the resolution and decoherence of quantum measurements

@article{Patekar2019TheRO,
  title={The role of system–meter entanglement in controlling the resolution and decoherence of quantum measurements},
  author={Kartik Patekar and Holger F. Hofmann},
  journal={New Journal of Physics},
  year={2019},
  volume={21}
}
Measurement processes can be separated into an entangling interaction between the system and a meter and a subsequent readout of the meter state that does not involve any further interactions with the system. In the interval between these two stages, the system and the meter are in an entangled state that encodes all possible effects of the readout in the form of non-local quantum correlations between the system and the meter. Here, we show that the entanglement generated in the system–meter… 

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