Limits on the ability of quantum states to convey classical messages

@article{Nayak2006LimitsOT,
  title={Limits on the ability of quantum states to convey classical messages},
  author={Ashwin Nayak and Julia Salzman},
  journal={J. ACM},
  year={2006},
  volume={53},
  pages={184-206}
}
We revisit the problem of conveying classical messages by transmitting quantum states, and derive new, optimal bounds on the number of quantum bits required for this task. Much of the previous work on this problem, and on other communication tasks in the setting of bounded error entanglement-assisted communication, is based on sophisticated information theoretic arguments. Our results are derived from first principles, using a simple linear algebraic technique. A direct consequence is a tight… CONTINUE READING

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