Information-disturbance tradeoff in quantum measurements
arXiv:quant-ph/0510104 · doi:10.1103/PhysRevA.73.042307
Abstract
We present a simple information-disturbance tradeoff relation valid for any general measurement apparatus: The disturbance between input and output states is lower bounded by the information the apparatus provides in distinguishing these two states.
4 Pages, 1 Figure. Published version (reference added and minor changes performed)