English

Quantum capacity of an amplitude-damping channel with memory

Quantum Physics 2017-07-03 v3

Abstract

We calculate the quantum capacity of an amplitude-damping channel with time correlated Markov noise, for two channel uses. Our results show that memory of the channel increases it's ability to transmit quantum information significantly. We analyze and compare our findings with earlier numerical results on amplitude-damping channel with memory. An upper bound on the amount of quantum information transmitted over the channel in presence of memory, for an arbitrary number of channel uses is also presented.

Keywords

Cite

@article{arxiv.1207.5612,
  title  = {Quantum capacity of an amplitude-damping channel with memory},
  author = {Rabia Jahangir and Nigum Arshed and A. H. Toor},
  journal= {arXiv preprint arXiv:1207.5612},
  year   = {2017}
}

Comments

17 Pages, 5 Figures