Communication at the quantum speed limit along a spin chain

@inproceedings{Murphy2010CommunicationAT,
  title={Communication at the quantum speed limit along a spin chain},
  author={Michael P Murphy and Simone Montangero},
  year={2010}
}
Spin chains have long been considered as candidates for quantum channels to facilitate quantum communication. We consider the transfer of a single excitation along a spin-1/2 chain governed by Heisenberg-type interactions. We build on the work of Balachandran and Gong [V. Balachandran and J. Gong, Phys. Rev. A 77, 012303 (2008)] and show that by applying… CONTINUE READING